diff --git a/libraries/src/Access/Access.php b/libraries/src/Access/Access.php
index ccf48cf014065..f8a8ae036624f 100644
--- a/libraries/src/Access/Access.php
+++ b/libraries/src/Access/Access.php
@@ -1044,7 +1044,7 @@ public static function getActionsFromData($data, $xpath = "/access/section[@name
         if (\is_string($data)) {
             try {
                 $data = new \SimpleXMLElement($data);
-            } catch (\Exception $e) {
+            } catch (\Exception) {
                 return false;
             }
 
diff --git a/libraries/src/Application/CMSApplication.php b/libraries/src/Application/CMSApplication.php
index 385936d8ecfaa..c285d5a9443c9 100644
--- a/libraries/src/Application/CMSApplication.php
+++ b/libraries/src/Application/CMSApplication.php
@@ -498,7 +498,7 @@ public function getCfg($varname, $default = null)
                 Log::WARNING,
                 'deprecated'
             );
-        } catch (\RuntimeException $exception) {
+        } catch (\RuntimeException) {
             // Informational log only
         }
 
diff --git a/libraries/src/Application/ConsoleApplication.php b/libraries/src/Application/ConsoleApplication.php
index 5941c4225c993..bb68e31ef43d4 100644
--- a/libraries/src/Application/ConsoleApplication.php
+++ b/libraries/src/Application/ConsoleApplication.php
@@ -525,7 +525,7 @@ protected function populateHttpHost()
          */
         try {
             $uri = Uri::getInstance($liveSite);
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             $uri = Uri::getInstance('https://joomla.invalid/set/by/console/application');
         }
 
diff --git a/libraries/src/Application/DaemonApplication.php b/libraries/src/Application/DaemonApplication.php
index b7d11dd3e86df..8be8a9987401e 100644
--- a/libraries/src/Application/DaemonApplication.php
+++ b/libraries/src/Application/DaemonApplication.php
@@ -517,7 +517,7 @@ protected function daemonize()
                 $this->processId = (int) posix_getpid();
                 $this->parentId  = $this->processId;
             }
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             Log::add('Unable to fork.', Log::EMERGENCY);
 
             return false;
diff --git a/libraries/src/Application/EventAware.php b/libraries/src/Application/EventAware.php
index ff78555627a7c..2617effb67f79 100644
--- a/libraries/src/Application/EventAware.php
+++ b/libraries/src/Application/EventAware.php
@@ -60,7 +60,7 @@ public function registerEvent($event, callable $handler)
     {
         try {
             $this->getDispatcher()->addListener($event, $handler);
-        } catch (\UnexpectedValueException $e) {
+        } catch (\UnexpectedValueException) {
             // No dispatcher is registered, don't throw an error (mimics old behavior)
         }
 
@@ -93,7 +93,7 @@ public function triggerEvent($eventName, $args = [])
     {
         try {
             $dispatcher = $this->getDispatcher();
-        } catch (\UnexpectedValueException $exception) {
+        } catch (\UnexpectedValueException) {
             $this->getLogger()->error(\sprintf('Dispatcher not set in %s, cannot trigger events.', \get_class($this)));
 
             return [];
diff --git a/libraries/src/Application/MultiFactorAuthenticationHandler.php b/libraries/src/Application/MultiFactorAuthenticationHandler.php
index 049ca9fd6afcc..e41486964323a 100644
--- a/libraries/src/Application/MultiFactorAuthenticationHandler.php
+++ b/libraries/src/Application/MultiFactorAuthenticationHandler.php
@@ -59,7 +59,7 @@ protected function isHandlingMultiFactorAuthentication(): bool
         // Multi-factor Authentication checks take place only for logged in users.
         try {
             $user = $this->getIdentity();
-        } catch (\Exception $e) {
+        } catch (\Exception) {
             return false;
         }
 
@@ -255,7 +255,7 @@ private function needsMultiFactorAuthenticationRedirection(): bool
         // Make sure we are logged in
         try {
             $user = $this->getIdentity();
-        } catch (\Exception $e) {
+        } catch (\Exception) {
             // This would happen if we are in CLI or under an old Joomla! version. Either case is not supported.
             return false;
         }
@@ -356,7 +356,7 @@ private function hasRejectedMultiFactorAuthenticationSetup(): bool
 
         try {
             $result = $db->setQuery($query)->loadResult();
-        } catch (\Exception $e) {
+        } catch (\Exception) {
             $result = 1;
         }
 
@@ -491,7 +491,7 @@ private function decryptLegacyTFAString(string $secret, string $stringToDecrypt)
         // Is this already decrypted?
         try {
             $decrypted = @json_decode($stringToDecrypt, true);
-        } catch (\Exception $e) {
+        } catch (\Exception) {
             $decrypted = null;
         }
 
diff --git a/libraries/src/Cache/CacheController.php b/libraries/src/Cache/CacheController.php
index 2c446ebe29df1..038d1e321d602 100644
--- a/libraries/src/Cache/CacheController.php
+++ b/libraries/src/Cache/CacheController.php
@@ -103,7 +103,7 @@ public static function getInstance($type = 'output', $options = [])
 
         try {
             return Factory::getContainer()->get(CacheControllerFactoryInterface::class)->createCacheController($type, $options);
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             $type  = strtolower(preg_replace('/[^A-Z0-9_\.-]/i', '', $type));
             $class = 'JCacheController' . ucfirst($type);
 
diff --git a/libraries/src/Cache/Storage/RedisStorage.php b/libraries/src/Cache/Storage/RedisStorage.php
index cc46792760ee5..3f97b700a7ede 100644
--- a/libraries/src/Cache/Storage/RedisStorage.php
+++ b/libraries/src/Cache/Storage/RedisStorage.php
@@ -129,7 +129,7 @@ protected function getConnection()
 
         try {
             static::$_redis->ping();
-        } catch (\RedisException $e) {
+        } catch (\RedisException) {
             static::$_redis = null;
 
             throw new CacheConnectingException('Redis ping failed', 500);
diff --git a/libraries/src/Captcha/Google/HttpBridgePostRequestMethod.php b/libraries/src/Captcha/Google/HttpBridgePostRequestMethod.php
index 7b265138afca0..acee2c848c368 100644
--- a/libraries/src/Captcha/Google/HttpBridgePostRequestMethod.php
+++ b/libraries/src/Captcha/Google/HttpBridgePostRequestMethod.php
@@ -69,7 +69,7 @@ public function submit(RequestParameters $params)
             $response = $this->http->post(self::SITE_VERIFY_URL, $params->toArray());
 
             return (string) $response->getBody();
-        } catch (InvalidResponseCodeException $exception) {
+        } catch (InvalidResponseCodeException) {
             return '';
         }
     }
diff --git a/libraries/src/Categories/Categories.php b/libraries/src/Categories/Categories.php
index dcd19bbcd1f07..f961dc720043b 100644
--- a/libraries/src/Categories/Categories.php
+++ b/libraries/src/Categories/Categories.php
@@ -157,7 +157,7 @@ public static function getInstance($extension, $options = [])
             if ($component instanceof CategoryServiceInterface) {
                 $categories = $component->getCategory($options, \count($parts) > 1 ? $parts[1] : '');
             }
-        } catch (SectionNotFoundException $e) {
+        } catch (SectionNotFoundException) {
             $categories = null;
         }
 
@@ -236,7 +236,7 @@ protected function _load($id)
     {
         try {
             $db = $this->getDatabase();
-        } catch (DatabaseNotFoundException $e) {
+        } catch (DatabaseNotFoundException) {
             @trigger_error(\sprintf('Database must be set, this will not be caught anymore in 5.0.'), E_USER_DEPRECATED);
             $db = Factory::getContainer()->get(DatabaseInterface::class);
         }
diff --git a/libraries/src/Changelog/Changelog.php b/libraries/src/Changelog/Changelog.php
index ef21696991ab0..dbe0561a9766e 100644
--- a/libraries/src/Changelog/Changelog.php
+++ b/libraries/src/Changelog/Changelog.php
@@ -354,7 +354,7 @@ public function loadFromXml($url)
         try {
             $http     = HttpFactory::getHttp($httpOption);
             $response = $http->get($url);
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             $response = null;
         }
 
diff --git a/libraries/src/Component/ComponentHelper.php b/libraries/src/Component/ComponentHelper.php
index 0c127d3087d60..eb508008a035d 100644
--- a/libraries/src/Component/ComponentHelper.php
+++ b/libraries/src/Component/ComponentHelper.php
@@ -408,7 +408,7 @@ protected static function load()
 
         try {
             static::$components = $cache->get($loader, [], __METHOD__);
-        } catch (CacheExceptionInterface $e) {
+        } catch (CacheExceptionInterface) {
             static::$components = $loader();
         }
 
diff --git a/libraries/src/Console/FinderIndexCommand.php b/libraries/src/Console/FinderIndexCommand.php
index 9c594e9e026ac..66d7ebed1b5dc 100644
--- a/libraries/src/Console/FinderIndexCommand.php
+++ b/libraries/src/Console/FinderIndexCommand.php
@@ -245,7 +245,7 @@ private function configureIO(InputInterface $input, OutputInterface $output): vo
 
         try {
             $language = $this->getLanguage();
-        } catch (\UnexpectedValueException $e) {
+        } catch (\UnexpectedValueException) {
             @trigger_error(\sprintf('Language must be set in 6.0 in %s', __METHOD__), E_USER_DEPRECATED);
             $language = Factory::getLanguage();
         }
diff --git a/libraries/src/Console/SiteCreatePublicFolderCommand.php b/libraries/src/Console/SiteCreatePublicFolderCommand.php
index d4ddc024d4cf5..bc5f64b941d44 100644
--- a/libraries/src/Console/SiteCreatePublicFolderCommand.php
+++ b/libraries/src/Console/SiteCreatePublicFolderCommand.php
@@ -89,7 +89,7 @@ protected function doExecute(InputInterface $input, OutputInterface $output): in
 
         try {
             (new PublicFolderGeneratorHelper())->createPublicFolder($this->publicFolder);
-        } catch (\Exception $e) {
+        } catch (\Exception) {
             return Command::FAILURE;
         }
 
diff --git a/libraries/src/Crypt/Cipher/CryptoCipher.php b/libraries/src/Crypt/Cipher/CryptoCipher.php
index 5c4b25c2e2133..8a353f9bf3493 100644
--- a/libraries/src/Crypt/Cipher/CryptoCipher.php
+++ b/libraries/src/Crypt/Cipher/CryptoCipher.php
@@ -124,7 +124,7 @@ public static function isSupported(): bool
             \Crypto::RuntimeTest();
 
             return true;
-        } catch (\CryptoTestFailedException $e) {
+        } catch (\CryptoTestFailedException) {
             return false;
         }
     }
diff --git a/libraries/src/Exception/ExceptionHandler.php b/libraries/src/Exception/ExceptionHandler.php
index c8816c941511e..84aa52a7beefb 100644
--- a/libraries/src/Exception/ExceptionHandler.php
+++ b/libraries/src/Exception/ExceptionHandler.php
@@ -44,7 +44,7 @@ public static function handleUserDeprecatedErrors(int $errorNumber, string $erro
         if ($errorNumber === E_USER_DEPRECATED) {
             try {
                 Log::add("$errorMessage - $errorFile - Line $errorLine", Log::WARNING, 'deprecated');
-            } catch (\Exception $e) {
+            } catch (\Exception) {
                 // Silence
             }
 
@@ -115,7 +115,7 @@ public static function render(\Throwable $error)
 
             try {
                 $renderer = AbstractRenderer::getRenderer($format);
-            } catch (\InvalidArgumentException $e) {
+            } catch (\InvalidArgumentException) {
                 // Default to the HTML renderer
                 $renderer = AbstractRenderer::getRenderer('html');
             }
@@ -225,7 +225,7 @@ protected static function logException(\Throwable $error)
                 Log::CRITICAL,
                 'error'
             );
-        } catch (\Throwable $e) {
+        } catch (\Throwable) {
             // Logging failed, don't make a stink about it though
         }
     }
diff --git a/libraries/src/Form/Field/ContenttypeField.php b/libraries/src/Form/Field/ContenttypeField.php
index 5477f799a33a8..f12cbc8973acd 100644
--- a/libraries/src/Form/Field/ContenttypeField.php
+++ b/libraries/src/Form/Field/ContenttypeField.php
@@ -80,7 +80,7 @@ protected function getOptions()
 
         try {
             $options = $db->loadObjectList();
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             return [];
         }
 
diff --git a/libraries/src/Form/Field/MenuitemField.php b/libraries/src/Form/Field/MenuitemField.php
index 424a772955b53..4dfc8174493a5 100644
--- a/libraries/src/Form/Field/MenuitemField.php
+++ b/libraries/src/Form/Field/MenuitemField.php
@@ -185,7 +185,7 @@ protected function getGroups()
 
             try {
                 $menuTitle = $db->loadResult();
-            } catch (\RuntimeException $e) {
+            } catch (\RuntimeException) {
                 $menuTitle = $menuType;
             }
 
diff --git a/libraries/src/Form/Field/SqlField.php b/libraries/src/Form/Field/SqlField.php
index 9a3893cdc2519..efb1e319e8df7 100644
--- a/libraries/src/Form/Field/SqlField.php
+++ b/libraries/src/Form/Field/SqlField.php
@@ -291,7 +291,7 @@ protected function getOptions()
 
             try {
                 $items = $db->loadObjectList();
-            } catch (ExecutionFailureException $e) {
+            } catch (ExecutionFailureException) {
                 Factory::getApplication()->enqueueMessage(Text::_('JERROR_AN_ERROR_HAS_OCCURRED'), 'error');
             }
         }
diff --git a/libraries/src/Form/Field/TagField.php b/libraries/src/Form/Field/TagField.php
index e81b268d5678a..9d0109a401aa6 100644
--- a/libraries/src/Form/Field/TagField.php
+++ b/libraries/src/Form/Field/TagField.php
@@ -209,7 +209,7 @@ protected function getOptions()
 
                 try {
                     $options = $db->loadObjectList();
-                } catch (\RuntimeException $e) {
+                } catch (\RuntimeException) {
                     return [];
                 }
 
@@ -232,7 +232,7 @@ protected function getOptions()
 
             try {
                 $options = array_merge($options, $db->loadObjectList());
-            } catch (\RuntimeException $e) {
+            } catch (\RuntimeException) {
                 return [];
             }
         }
diff --git a/libraries/src/Form/Form.php b/libraries/src/Form/Form.php
index ccc34ab7c6a54..aa043c8ee37de 100644
--- a/libraries/src/Form/Form.php
+++ b/libraries/src/Form/Form.php
@@ -601,7 +601,7 @@ public function load($data, $replace = true, $xpath = null)
         if (\is_string($data)) {
             try {
                 $data = new \SimpleXMLElement($data);
-            } catch (\Exception $e) {
+            } catch (\Exception) {
                 return false;
             }
         }
@@ -1465,7 +1465,7 @@ protected function loadField($element, $group = null, $value = null)
         if ($field instanceof DatabaseAwareInterface) {
             try {
                 $field->setDatabase($this->getDatabase());
-            } catch (DatabaseNotFoundException $e) {
+            } catch (DatabaseNotFoundException) {
                 @trigger_error(\sprintf('Database must be set, this will not be caught anymore in 5.0.'), E_USER_DEPRECATED);
                 $field->setDatabase(Factory::getContainer()->get(DatabaseInterface::class));
             }
diff --git a/libraries/src/Form/FormField.php b/libraries/src/Form/FormField.php
index c0c0c9274662f..ad9c253c5260f 100644
--- a/libraries/src/Form/FormField.php
+++ b/libraries/src/Form/FormField.php
@@ -1217,7 +1217,7 @@ public function validate($value, $group = null, ?Registry $input = null)
             if ($rule instanceof DatabaseAwareInterface) {
                 try {
                     $rule->setDatabase($this->getDatabase());
-                } catch (DatabaseNotFoundException $e) {
+                } catch (DatabaseNotFoundException) {
                     @trigger_error(\sprintf('Database must be set, this will not be caught anymore in 5.0.'), E_USER_DEPRECATED);
                     $rule->setDatabase(Factory::getContainer()->get(DatabaseInterface::class));
                 }
@@ -1242,7 +1242,7 @@ public function validate($value, $group = null, ?Registry $input = null)
             if ($rule instanceof DatabaseAwareInterface) {
                 try {
                     $rule->setDatabase($this->getDatabase());
-                } catch (DatabaseNotFoundException $e) {
+                } catch (DatabaseNotFoundException) {
                     @trigger_error(\sprintf('Database must be set, this will not be caught anymore in 5.0.'), E_USER_DEPRECATED);
                     $rule->setDatabase(Factory::getContainer()->get(DatabaseInterface::class));
                 }
diff --git a/libraries/src/Form/Rule/CalendarRule.php b/libraries/src/Form/Rule/CalendarRule.php
index 243b8d8761a2f..584e2943531b2 100644
--- a/libraries/src/Form/Rule/CalendarRule.php
+++ b/libraries/src/Form/Rule/CalendarRule.php
@@ -56,7 +56,7 @@ public function test(\SimpleXMLElement $element, $value, $group = null, ?Registr
 
         try {
             return Factory::getDate($value) instanceof Date;
-        } catch (\Exception $e) {
+        } catch (\Exception) {
             return false;
         }
     }
diff --git a/libraries/src/Form/Rule/FilePathRule.php b/libraries/src/Form/Rule/FilePathRule.php
index 884e318f39dd5..63ee9daef96b4 100644
--- a/libraries/src/Form/Rule/FilePathRule.php
+++ b/libraries/src/Form/Rule/FilePathRule.php
@@ -70,7 +70,7 @@ public function test(\SimpleXMLElement $element, $value, $group = null, ?Registr
         // Check if $value is a valid path, which includes not allowing to break out of the current path
         try {
             Path::check($value);
-        } catch (\Exception $e) {
+        } catch (\Exception) {
             // When there is an exception in the check path this is not valid
             return false;
         }
diff --git a/libraries/src/Helper/AuthenticationHelper.php b/libraries/src/Helper/AuthenticationHelper.php
index 7941fa8f30077..de5e00aa1c9af 100644
--- a/libraries/src/Helper/AuthenticationHelper.php
+++ b/libraries/src/Helper/AuthenticationHelper.php
@@ -93,7 +93,7 @@ public static function getLoginButtons(string $formId): array
             // Get all the User plugins.
             $dispatcher = Factory::getApplication()->getDispatcher();
             PluginHelper::importPlugin('user', null, true, $dispatcher);
-        } catch (\Exception $e) {
+        } catch (\Exception) {
             return [];
         }
 
diff --git a/libraries/src/Helper/LibraryHelper.php b/libraries/src/Helper/LibraryHelper.php
index fccd82af535f3..6c17ed4d1bc50 100644
--- a/libraries/src/Helper/LibraryHelper.php
+++ b/libraries/src/Helper/LibraryHelper.php
@@ -164,7 +164,7 @@ protected static function loadLibrary($element)
 
         try {
             static::$libraries[$element] = $cache->get($loader, [$element], __METHOD__ . $element);
-        } catch (CacheExceptionInterface $e) {
+        } catch (CacheExceptionInterface) {
             static::$libraries[$element] = $loader($element);
         }
 
diff --git a/libraries/src/Helper/MediaHelper.php b/libraries/src/Helper/MediaHelper.php
index 4b6ba22886464..9e3d40e0d3524 100644
--- a/libraries/src/Helper/MediaHelper.php
+++ b/libraries/src/Helper/MediaHelper.php
@@ -103,7 +103,7 @@ public static function getMimeType($file, $isImage = false)
                 $mime  = finfo_file($finfo, $file);
                 finfo_close($finfo);
             }
-        } catch (\Exception $e) {
+        } catch (\Exception) {
             // If we have any kind of error here => false;
             return false;
         }
diff --git a/libraries/src/Helper/ModuleHelper.php b/libraries/src/Helper/ModuleHelper.php
index 4a92863884e51..c8a684f6ebeae 100644
--- a/libraries/src/Helper/ModuleHelper.php
+++ b/libraries/src/Helper/ModuleHelper.php
@@ -334,7 +334,7 @@ public static function getLayoutPath($module, $layout = 'default')
             $tPath = Path::check(JPATH_THEMES . '/' . $template . '/html/' . $module . '/' . $layout . '.php');
             $iPath = Path::check(JPATH_THEMES . '/' . $templateObj->parent . '/html/' . $module . '/' . $layout . '.php');
             $bPath = Path::check(JPATH_BASE . '/modules/' . $module . '/tmpl/' . $defaultLayout . '.php');
-        } catch (\Exception $e) {
+        } catch (\Exception) {
             // On error fallback to the default path
             return $dPath;
         }
diff --git a/libraries/src/Helper/TagsHelper.php b/libraries/src/Helper/TagsHelper.php
index 8eaf8a6956d5a..491675fc739a2 100644
--- a/libraries/src/Helper/TagsHelper.php
+++ b/libraries/src/Helper/TagsHelper.php
@@ -194,7 +194,7 @@ public static function convertPathsToNames($tags)
 
                 try {
                     $aliasesMapper = $db->loadAssocList('alias');
-                } catch (\RuntimeException $e) {
+                } catch (\RuntimeException) {
                     return false;
                 }
 
@@ -1001,7 +1001,7 @@ public static function searchTags($filters = [])
 
         try {
             $results = $db->loadObjectList();
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             return [];
         }
 
diff --git a/libraries/src/Installer/Adapter/ComponentAdapter.php b/libraries/src/Installer/Adapter/ComponentAdapter.php
index 03be708a35706..d8214ad3abe63 100644
--- a/libraries/src/Installer/Adapter/ComponentAdapter.php
+++ b/libraries/src/Installer/Adapter/ComponentAdapter.php
@@ -1245,7 +1245,7 @@ protected function _updateMenus($componentId, $clientId = null)
         try {
             $db->setQuery($query);
             $db->execute();
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             return false;
         }
 
@@ -1369,7 +1369,7 @@ public function refreshManifestCache()
 
         try {
             return $this->parent->extension->store();
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             Log::add(Text::_('JLIB_INSTALLER_ERROR_COMP_REFRESH_MANIFEST_CACHE'), Log::WARNING, 'jerror');
 
             return false;
diff --git a/libraries/src/Installer/Adapter/FileAdapter.php b/libraries/src/Installer/Adapter/FileAdapter.php
index 0d8b233e75f82..94bf439616450 100644
--- a/libraries/src/Installer/Adapter/FileAdapter.php
+++ b/libraries/src/Installer/Adapter/FileAdapter.php
@@ -466,7 +466,7 @@ protected function extensionExistsInSystem($extension = null)
 
         try {
             $db->execute();
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             // Install failed, rollback changes - error logged by the installer
             return false;
         }
@@ -589,7 +589,7 @@ public function refreshManifestCache()
 
         try {
             return $this->parent->extension->store();
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             Log::add(Text::_('JLIB_INSTALLER_ERROR_PACK_REFRESH_MANIFEST_CACHE'), Log::WARNING, 'jerror');
 
             return false;
diff --git a/libraries/src/Installer/Adapter/LanguageAdapter.php b/libraries/src/Installer/Adapter/LanguageAdapter.php
index 9333350f572d4..ee220fdac5114 100644
--- a/libraries/src/Installer/Adapter/LanguageAdapter.php
+++ b/libraries/src/Installer/Adapter/LanguageAdapter.php
@@ -700,7 +700,7 @@ public function discover_install()
         try {
             $this->parent->extension->check();
             $this->parent->extension->store();
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             Log::add(Text::_('JLIB_INSTALLER_ERROR_LANG_DISCOVER_STORE_DETAILS'), Log::WARNING, 'jerror');
 
             return false;
diff --git a/libraries/src/Installer/Adapter/LibraryAdapter.php b/libraries/src/Installer/Adapter/LibraryAdapter.php
index d55a4918051cd..b02cd13080c0e 100644
--- a/libraries/src/Installer/Adapter/LibraryAdapter.php
+++ b/libraries/src/Installer/Adapter/LibraryAdapter.php
@@ -498,7 +498,7 @@ public function refreshManifestCache()
 
         try {
             return $this->parent->extension->store();
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             Log::add(Text::_('JLIB_INSTALLER_ERROR_LIB_REFRESH_MANIFEST_CACHE'), Log::WARNING, 'jerror');
 
             return false;
diff --git a/libraries/src/Installer/Adapter/ModuleAdapter.php b/libraries/src/Installer/Adapter/ModuleAdapter.php
index f31fcb8807358..595dd360c72a4 100644
--- a/libraries/src/Installer/Adapter/ModuleAdapter.php
+++ b/libraries/src/Installer/Adapter/ModuleAdapter.php
@@ -288,7 +288,7 @@ protected function finaliseUninstall(): bool
         try {
             // Clean up any other ones that might exist as well
             $db->execute();
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             // Ignore the error...
         }
 
@@ -677,7 +677,7 @@ protected function _rollback_menu($arg)
 
         try {
             return $db->execute();
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             return false;
         }
     }
@@ -708,7 +708,7 @@ protected function _rollback_module($arg)
 
         try {
             return $db->execute();
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             return false;
         }
     }
diff --git a/libraries/src/Installer/Adapter/PackageAdapter.php b/libraries/src/Installer/Adapter/PackageAdapter.php
index d6e441dd1c702..0f036f853a307 100644
--- a/libraries/src/Installer/Adapter/PackageAdapter.php
+++ b/libraries/src/Installer/Adapter/PackageAdapter.php
@@ -230,7 +230,7 @@ protected function finaliseInstall()
 
             try {
                 $db->setQuery($query)->execute();
-            } catch (ExecutionFailureException $e) {
+            } catch (ExecutionFailureException) {
                 Log::add(Text::_('JLIB_INSTALLER_ERROR_PACK_SETTING_PACKAGE_ID'), Log::WARNING, 'jerror');
             }
         }
@@ -723,7 +723,7 @@ public function refreshManifestCache()
 
         try {
             return $this->parent->extension->store();
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             Log::add(Text::_('JLIB_INSTALLER_ERROR_PACK_REFRESH_MANIFEST_CACHE'), Log::WARNING, 'jerror');
 
             return false;
diff --git a/libraries/src/Installer/Adapter/TemplateAdapter.php b/libraries/src/Installer/Adapter/TemplateAdapter.php
index 07823c741bd1a..b3f4444736c54 100644
--- a/libraries/src/Installer/Adapter/TemplateAdapter.php
+++ b/libraries/src/Installer/Adapter/TemplateAdapter.php
@@ -681,7 +681,7 @@ public function refreshManifestCache()
 
         try {
             return $this->parent->extension->store();
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             Log::add(Text::_('JLIB_INSTALLER_ERROR_TPL_REFRESH_MANIFEST_CACHE'), Log::WARNING, 'jerror');
 
             return false;
diff --git a/libraries/src/Installer/Installer.php b/libraries/src/Installer/Installer.php
index b18418bf9f9b7..c0004580d9a68 100644
--- a/libraries/src/Installer/Installer.php
+++ b/libraries/src/Installer/Installer.php
@@ -564,7 +564,7 @@ public function abort($msg = null, $type = null)
                         $db->execute();
 
                         $stepval = true;
-                    } catch (ExecutionFailureException $e) {
+                    } catch (ExecutionFailureException) {
                         // The database API will have already logged the error it caught, we just need to alert the user to the issue
                         Log::add(Text::_('JLIB_INSTALLER_ABORT_ERROR_DELETING_EXTENSIONS_RECORD'), Log::WARNING, 'jerror');
 
@@ -1351,7 +1351,7 @@ protected function updateSchemaTable(int $eid, string $version, bool $update = f
             } else {
                 $db->insertObject('#__schemas', $o);
             }
-        } catch (ExecutionFailureException $e) {
+        } catch (ExecutionFailureException) {
             /**
              * Safe fallback: delete any existing record and insert afresh.
              *
diff --git a/libraries/src/Installer/InstallerHelper.php b/libraries/src/Installer/InstallerHelper.php
index 5f68dc4998ac5..33812eb84cc60 100644
--- a/libraries/src/Installer/InstallerHelper.php
+++ b/libraries/src/Installer/InstallerHelper.php
@@ -166,7 +166,7 @@ public static function unpack($packageFilename, $alwaysReturnArray = false)
         try {
             $archive = new Archive(['tmp_path' => Factory::getApplication()->get('tmp_path')]);
             $extract = $archive->extract($archivename, $extractdir);
-        } catch (\Exception $e) {
+        } catch (\Exception) {
             if ($alwaysReturnArray) {
                 return [
                     'extractdir'  => null,
diff --git a/libraries/src/Installer/LegacyInstallerScript.php b/libraries/src/Installer/LegacyInstallerScript.php
index 51a95e46dcf35..df655e9959708 100644
--- a/libraries/src/Installer/LegacyInstallerScript.php
+++ b/libraries/src/Installer/LegacyInstallerScript.php
@@ -179,7 +179,7 @@ private function callOnScript(string $name, array $arguments): bool
         if ($this->installerScript instanceof DatabaseAwareInterface) {
             try {
                 $this->installerScript->setDatabase($this->getDatabase());
-            } catch (DatabaseNotFoundException $e) {
+            } catch (DatabaseNotFoundException) {
                 @trigger_error(\sprintf('Database must be set, this will not be caught anymore in 6.0 in %s.', __METHOD__), E_USER_DEPRECATED);
                 $this->installerScript->setDatabase(Factory::getContainer()->get(DatabaseInterface::class));
             }
diff --git a/libraries/src/Language/LanguageHelper.php b/libraries/src/Language/LanguageHelper.php
index dd266755c012d..0a366ece2ed7a 100644
--- a/libraries/src/Language/LanguageHelper.php
+++ b/libraries/src/Language/LanguageHelper.php
@@ -281,7 +281,7 @@ public static function getInstalledLanguages(
                 if ($processMetaData) {
                     try {
                         $lang->metadata = self::parseXMLLanguageFile($metafile);
-                    } catch (\Exception $e) {
+                    } catch (\Exception) {
                         // Not able to process xml language file. Fail silently.
                         Log::add(Text::sprintf('JLIB_LANGUAGE_ERROR_CANNOT_LOAD_METAFILE', $language->element, $metafile), Log::WARNING, 'language');
 
@@ -300,7 +300,7 @@ public static function getInstalledLanguages(
                 if ($processManifest) {
                     try {
                         $lang->manifest = Installer::parseXMLInstallFile($metafile);
-                    } catch (\Exception $e) {
+                    } catch (\Exception) {
                         // Not able to process xml language file. Fail silently.
                         Log::add(Text::sprintf('JLIB_LANGUAGE_ERROR_CANNOT_LOAD_METAFILE', $language->element, $metafile), Log::WARNING, 'language');
 
@@ -626,7 +626,7 @@ public static function parseLanguageFiles($dir = null)
                     if ($metadata = self::parseXMLLanguageFile($file)) {
                         $languages = array_replace($languages, [$dirPathParts['filename'] => $metadata]);
                     }
-                } catch (\RuntimeException $e) {
+                } catch (\RuntimeException) {
                     // Ignore it
                 }
             }
diff --git a/libraries/src/MVC/Controller/BaseController.php b/libraries/src/MVC/Controller/BaseController.php
index 2c7b838ae053d..ddae3e9683984 100644
--- a/libraries/src/MVC/Controller/BaseController.php
+++ b/libraries/src/MVC/Controller/BaseController.php
@@ -690,7 +690,7 @@ public function display($cachable = false, $urlparams = [])
                 /** @var \Joomla\CMS\Cache\Controller\ViewController $cache */
                 $cache = Factory::getCache($option, 'view');
                 $cache->get($view, 'display');
-            } catch (CacheExceptionInterface $exception) {
+            } catch (CacheExceptionInterface) {
                 $view->display();
             }
         } else {
diff --git a/libraries/src/MVC/Factory/MVCFactory.php b/libraries/src/MVC/Factory/MVCFactory.php
index a0282f2b4d69b..35fe905b69ee0 100644
--- a/libraries/src/MVC/Factory/MVCFactory.php
+++ b/libraries/src/MVC/Factory/MVCFactory.php
@@ -170,7 +170,7 @@ public function createModel($name, $prefix = '', array $config = [])
         if ($model instanceof DatabaseAwareInterface) {
             try {
                 $model->setDatabase($this->getDatabase());
-            } catch (DatabaseNotFoundException $e) {
+            } catch (DatabaseNotFoundException) {
                 @trigger_error(\sprintf('Database must be set, this will not be caught anymore in 5.0.'), E_USER_DEPRECATED);
                 $model->setDatabase(Factory::getContainer()->get(DatabaseInterface::class));
             }
@@ -266,7 +266,7 @@ public function createTable($name, $prefix = '', array $config = [])
 
         try {
             $db = \array_key_exists('dbo', $config) ? $config['dbo'] : $this->getDatabase();
-        } catch (DatabaseNotFoundException $e) {
+        } catch (DatabaseNotFoundException) {
             @trigger_error(\sprintf('Database must be set, this will not be caught anymore in 5.0.'), E_USER_DEPRECATED);
             $db = Factory::getContainer()->get(DatabaseInterface::class);
         }
@@ -320,7 +320,7 @@ private function setFormFactoryOnObject($object)
 
         try {
             $object->setFormFactory($this->getFormFactory());
-        } catch (\UnexpectedValueException $e) {
+        } catch (\UnexpectedValueException) {
             // Ignore it
         }
     }
@@ -342,7 +342,7 @@ private function setDispatcherOnObject($object)
 
         try {
             $object->setDispatcher($this->getDispatcher());
-        } catch (\UnexpectedValueException $e) {
+        } catch (\UnexpectedValueException) {
             // Ignore it
         }
     }
@@ -364,7 +364,7 @@ private function setRouterOnObject($object): void
 
         try {
             $object->setSiteRouter($this->getSiteRouter());
-        } catch (\UnexpectedValueException $e) {
+        } catch (\UnexpectedValueException) {
             // Ignore it
         }
     }
@@ -386,7 +386,7 @@ private function setCacheControllerOnObject($object): void
 
         try {
             $object->setCacheControllerFactory($this->getCacheControllerFactory());
-        } catch (\UnexpectedValueException $e) {
+        } catch (\UnexpectedValueException) {
             // Ignore it
         }
     }
@@ -408,7 +408,7 @@ private function setUserFactoryOnObject($object): void
 
         try {
             $object->setUserFactory($this->getUserFactory());
-        } catch (\UnexpectedValueException $e) {
+        } catch (\UnexpectedValueException) {
             // Ignore it
         }
     }
@@ -430,7 +430,7 @@ private function setMailerFactoryOnObject($object): void
 
         try {
             $object->setMailerFactory($this->getMailerFactory());
-        } catch (\UnexpectedValueException $e) {
+        } catch (\UnexpectedValueException) {
             // Ignore it
         }
     }
diff --git a/libraries/src/MVC/Model/BaseDatabaseModel.php b/libraries/src/MVC/Model/BaseDatabaseModel.php
index 5ac17120cb903..e7dbc8e27dfa2 100644
--- a/libraries/src/MVC/Model/BaseDatabaseModel.php
+++ b/libraries/src/MVC/Model/BaseDatabaseModel.php
@@ -311,7 +311,7 @@ protected function cleanCache($group = null)
             /** @var CallbackController $cache */
             $cache = $this->getCacheControllerFactory()->createCacheController('callback', $options);
             $cache->clean();
-        } catch (CacheExceptionInterface $exception) {
+        } catch (CacheExceptionInterface) {
             $options['result'] = false;
         }
 
@@ -398,7 +398,7 @@ public function getDbo()
     {
         try {
             return $this->getDatabase();
-        } catch (DatabaseNotFoundException $e) {
+        } catch (DatabaseNotFoundException) {
             throw new \UnexpectedValueException('Database driver not set in ' . __CLASS__);
         }
     }
diff --git a/libraries/src/MVC/Model/FormBehaviorTrait.php b/libraries/src/MVC/Model/FormBehaviorTrait.php
index b83e3d241ea3e..6ff8b6452b13e 100644
--- a/libraries/src/MVC/Model/FormBehaviorTrait.php
+++ b/libraries/src/MVC/Model/FormBehaviorTrait.php
@@ -82,7 +82,7 @@ protected function loadForm($name, $source = null, $options = [], $clear = false
 
         try {
             $formFactory = $this->getFormFactory();
-        } catch (\UnexpectedValueException $e) {
+        } catch (\UnexpectedValueException) {
             $formFactory = Factory::getContainer()->get(FormFactoryInterface::class);
         }
 
diff --git a/libraries/src/MVC/Model/ListModel.php b/libraries/src/MVC/Model/ListModel.php
index 2b5196b072bc3..f3c117021fa4a 100644
--- a/libraries/src/MVC/Model/ListModel.php
+++ b/libraries/src/MVC/Model/ListModel.php
@@ -429,7 +429,7 @@ public function getFilterForm($data = [], $loadData = true)
         try {
             // Get the form.
             return $this->loadForm($this->context . '.filter', $this->filterFormName, ['control' => '', 'load_data' => $loadData]);
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
         }
 
         return null;
diff --git a/libraries/src/Mail/MailerFactory.php b/libraries/src/Mail/MailerFactory.php
index fc91e620b6967..4efae62a2d5ab 100644
--- a/libraries/src/Mail/MailerFactory.php
+++ b/libraries/src/Mail/MailerFactory.php
@@ -82,7 +82,7 @@ public function createMailer(?Registry $settings = null): MailerInterface
                 if ($mailer->setFrom($mailfrom, MailHelper::cleanLine($fromname), false) === false) {
                     Log::add(__METHOD__ . '() could not set the sender data.', Log::WARNING, 'mail');
                 }
-            } catch (\Exception $e) {
+            } catch (\Exception) {
                 Log::add(__METHOD__ . '() could not set the sender data.', Log::WARNING, 'mail');
             }
         }
diff --git a/libraries/src/Menu/MenuItem.php b/libraries/src/Menu/MenuItem.php
index f621ea72df0e1..ceb479bb8ad22 100644
--- a/libraries/src/Menu/MenuItem.php
+++ b/libraries/src/Menu/MenuItem.php
@@ -222,7 +222,7 @@ public function getParams()
         if (!($this->params instanceof Registry)) {
             try {
                 $this->params = new Registry($this->params);
-            } catch (\RuntimeException $e) {
+            } catch (\RuntimeException) {
                 /*
                  * Joomla shipped with a broken sample json string for 4 years which caused fatals with new
                  * error checks. So for now we catch the exception here - but one day we should remove it and require
diff --git a/libraries/src/Menu/SiteMenu.php b/libraries/src/Menu/SiteMenu.php
index a0dba70a0943c..8abedbe60af73 100644
--- a/libraries/src/Menu/SiteMenu.php
+++ b/libraries/src/Menu/SiteMenu.php
@@ -177,7 +177,7 @@ public function load()
             $cache = $this->getCacheControllerFactory()->createCacheController('callback', ['defaultgroup' => 'com_menus']);
 
             $this->items = $cache->get($loader, [], md5(\get_class($this)), false);
-        } catch (CacheExceptionInterface $e) {
+        } catch (CacheExceptionInterface) {
             try {
                 $this->items = $loader();
             } catch (ExecutionFailureException $databaseException) {
diff --git a/libraries/src/Plugin/PluginHelper.php b/libraries/src/Plugin/PluginHelper.php
index 9977628cc163d..f32b998b191c3 100644
--- a/libraries/src/Plugin/PluginHelper.php
+++ b/libraries/src/Plugin/PluginHelper.php
@@ -296,7 +296,7 @@ protected static function load()
 
         try {
             static::$plugins = $cache->get($loader, [], md5(implode(',', $levels)), false);
-        } catch (CacheExceptionInterface $cacheException) {
+        } catch (CacheExceptionInterface) {
             static::$plugins = $loader();
         }
 
diff --git a/libraries/src/Router/ApiRouter.php b/libraries/src/Router/ApiRouter.php
index c10cfe396bbb9..d3431a0bc44fb 100644
--- a/libraries/src/Router/ApiRouter.php
+++ b/libraries/src/Router/ApiRouter.php
@@ -144,7 +144,7 @@ public function getRoutePath()
          */
         try {
             $baseUri = Uri::base(true);
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             $baseUri = '';
         }
 
diff --git a/libraries/src/Router/Route.php b/libraries/src/Router/Route.php
index e28a371610a4f..f4e2cdd238b3f 100644
--- a/libraries/src/Router/Route.php
+++ b/libraries/src/Router/Route.php
@@ -97,7 +97,7 @@ public static function _($url, $xhtml = true, $tls = self::TLS_IGNORE, $absolute
             $client = $app->getName();
 
             return static::link($client, $url, $xhtml, $tls, $absolute);
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             /**
              * @deprecated  3.9 this method will not fail silently from 6.0
              *              Before 3.9.0 this method failed silently on router error. This B/C will be removed in Joomla 6.0
@@ -136,7 +136,7 @@ public static function link($client, $url, $xhtml = true, $tls = self::TLS_IGNOR
         if ($client && !isset(self::$_router[$client])) {
             try {
                 self::$_router[$client] = Factory::getContainer()->get(ucfirst($client) . 'Router') ?: Factory::getApplication()::getRouter($client);
-            } catch (KeyNotFoundException $e) {
+            } catch (KeyNotFoundException) {
                 self::$_router[$client] = Factory::getApplication()::getRouter($client);
             }
         }
diff --git a/libraries/src/Router/SiteRouter.php b/libraries/src/Router/SiteRouter.php
index c94eb40d6a6d7..b5c948a3bd1c3 100644
--- a/libraries/src/Router/SiteRouter.php
+++ b/libraries/src/Router/SiteRouter.php
@@ -138,7 +138,7 @@ public function parseInit(&$router, &$uri)
          */
         try {
             $baseUri = Uri::base(true);
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             $baseUri = '';
         }
 
diff --git a/libraries/src/Schema/ChangeItem.php b/libraries/src/Schema/ChangeItem.php
index 97d11315e1c81..19808a25c119b 100644
--- a/libraries/src/Schema/ChangeItem.php
+++ b/libraries/src/Schema/ChangeItem.php
@@ -236,7 +236,7 @@ public function fix()
                 } else {
                     $this->rerunStatus = -2;
                 }
-            } catch (ExecutionFailureException | \RuntimeException $e) {
+            } catch (ExecutionFailureException | \RuntimeException) {
                 $this->rerunStatus = -2;
             }
         }
diff --git a/libraries/src/Session/MetadataManager.php b/libraries/src/Session/MetadataManager.php
index 0c58e944bffac..6ec289f3145e0 100644
--- a/libraries/src/Session/MetadataManager.php
+++ b/libraries/src/Session/MetadataManager.php
@@ -158,7 +158,7 @@ public function deletePriorTo($time)
 
         try {
             $this->db->execute();
-        } catch (ExecutionFailureException $exception) {
+        } catch (ExecutionFailureException) {
             // Since garbage collection does not result in a fatal error when run in the session API, we don't allow it here either.
         }
     }
@@ -185,7 +185,7 @@ private function checkSessionRecordExists(string $sessionId): int
 
         try {
             $exists = $this->db->loadResult();
-        } catch (ExecutionFailureException $e) {
+        } catch (ExecutionFailureException) {
             return self::$sessionRecordUnknown;
         }
 
@@ -258,7 +258,7 @@ private function createSessionRecord(SessionInterface $session, User $user)
 
         try {
             $this->db->execute();
-        } catch (ExecutionFailureException $e) {
+        } catch (ExecutionFailureException) {
             // This failure isn't critical, we can go on without the metadata
         }
     }
@@ -314,7 +314,7 @@ private function updateSessionRecord(SessionInterface $session, User $user)
 
         try {
             $this->db->execute();
-        } catch (ExecutionFailureException $e) {
+        } catch (ExecutionFailureException) {
             // This failure isn't critical, we can go on without the metadata
         }
     }
diff --git a/libraries/src/String/PunycodeHelper.php b/libraries/src/String/PunycodeHelper.php
index 48e397e56e118..0a6344bfebdb3 100644
--- a/libraries/src/String/PunycodeHelper.php
+++ b/libraries/src/String/PunycodeHelper.php
@@ -42,7 +42,7 @@ public static function toPunycode($utfString)
     {
         try {
             $converted = (new ToIdn())->convert($utfString);
-        } catch (AlreadyPunycodeException $e) {
+        } catch (AlreadyPunycodeException) {
             $converted = $utfString;
         }
 
diff --git a/libraries/src/TUF/TufFetcher.php b/libraries/src/TUF/TufFetcher.php
index d0f2e0ca0bd97..19566c801daff 100644
--- a/libraries/src/TUF/TufFetcher.php
+++ b/libraries/src/TUF/TufFetcher.php
@@ -127,17 +127,17 @@ public function getValidUpdate()
                 }
                 throw $e;
             }
-        } catch (DownloadSizeException $e) {
+        } catch (DownloadSizeException) {
             $this->app->enqueueMessage(Text::_('JLIB_INSTALLER_TUF_DOWNLOAD_SIZE'), CMSApplicationInterface::MSG_ERROR);
-        } catch (MetadataException $e) {
+        } catch (MetadataException) {
             $this->app->enqueueMessage(Text::_('JLIB_INSTALLER_TUF_INVALID_METADATA'), CMSApplicationInterface::MSG_ERROR);
-        } catch (FreezeAttackException $e) {
+        } catch (FreezeAttackException) {
             $this->app->enqueueMessage(Text::_('JLIB_INSTALLER_TUF_FREEZE_ATTACK'), CMSApplicationInterface::MSG_ERROR);
-        } catch (RollbackAttackException $e) {
+        } catch (RollbackAttackException) {
             $this->app->enqueueMessage(Text::_('JLIB_INSTALLER_TUF_ROLLBACK_ATTACK'), CMSApplicationInterface::MSG_ERROR);
-        } catch (SignatureThresholdException $e) {
+        } catch (SignatureThresholdException) {
             $this->app->enqueueMessage(Text::_('JLIB_INSTALLER_TUF_SIGNATURE_THRESHOLD'), CMSApplicationInterface::MSG_ERROR);
-        } catch (TufException $e) {
+        } catch (TufException) {
             $this->app->enqueueMessage(Text::_('JLIB_INSTALLER_TUF_ERROR_GENERIC'), CMSApplicationInterface::MSG_ERROR);
         }
 
diff --git a/libraries/src/Table/Usergroup.php b/libraries/src/Table/Usergroup.php
index a9fdc4c9e4cbc..1b4c4a23cd1dc 100644
--- a/libraries/src/Table/Usergroup.php
+++ b/libraries/src/Table/Usergroup.php
@@ -186,7 +186,7 @@ public function rebuild($parentId = 0, $left = 0)
         // If there is an update failure, return false to break out of the recursion
         try {
             $db->execute();
-        } catch (ExecutionFailureException $e) {
+        } catch (ExecutionFailureException) {
             return false;
         }
 
diff --git a/libraries/src/Updater/Adapter/TufAdapter.php b/libraries/src/Updater/Adapter/TufAdapter.php
index 67366b92f9fa8..2bb8cb4fe4790 100644
--- a/libraries/src/Updater/Adapter/TufAdapter.php
+++ b/libraries/src/Updater/Adapter/TufAdapter.php
@@ -161,7 +161,7 @@ protected function processTufTarget(string $filename, array $target): bool|array
 
         try {
             $values = $resolver->resolve($values);
-        } catch (\Exception $e) {
+        } catch (\Exception) {
             return false;
         }
 
diff --git a/libraries/src/Updater/Update.php b/libraries/src/Updater/Update.php
index 57004bb58db05..1780fa1a4f364 100644
--- a/libraries/src/Updater/Update.php
+++ b/libraries/src/Updater/Update.php
@@ -643,7 +643,7 @@ public function loadFromXml($url, $minimumStability = Updater::STABILITY_STABLE,
         try {
             $http     = HttpFactory::getHttp($httpOption);
             $response = $http->get($url);
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             $response = null;
         }
 
diff --git a/libraries/src/Updater/UpdateAdapter.php b/libraries/src/Updater/UpdateAdapter.php
index 1b4d1cc777c63..06899b779a966 100644
--- a/libraries/src/Updater/UpdateAdapter.php
+++ b/libraries/src/Updater/UpdateAdapter.php
@@ -164,7 +164,7 @@ protected function toggleUpdateSite($updateSiteId, $enabled = true)
 
         try {
             $db->execute();
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             // Do nothing
         }
     }
@@ -196,7 +196,7 @@ protected function getUpdateSiteName($updateSiteId)
 
         try {
             $name = $db->loadResult();
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             // Do nothing
         }
 
@@ -262,7 +262,7 @@ protected function getUpdateSiteResponse($options = [])
         try {
             $http     = HttpFactory::getHttp($httpOption);
             $response = $http->get($url, $headers, 20);
-        } catch (\RuntimeException $e) {
+        } catch (\RuntimeException) {
             $response = null;
         }
 
diff --git a/libraries/src/User/UserHelper.php b/libraries/src/User/UserHelper.php
index 3b8689b004a67..889066bd61d51 100644
--- a/libraries/src/User/UserHelper.php
+++ b/libraries/src/User/UserHelper.php
@@ -648,7 +648,7 @@ public static function destroyUserSessions($userId, $keepCurrent = false, $clien
                     ->delete($db->quoteName('#__session'))
                     ->whereIn($db->quoteName('session_id'), $sessionIds, ParameterType::LARGE_OBJECT)
             )->execute();
-        } catch (ExecutionFailureException $e) {
+        } catch (ExecutionFailureException) {
             // No issue, let things go
         }
 
diff --git a/libraries/src/WebAuthn/Server.php b/libraries/src/WebAuthn/Server.php
index 1b86b4b37284f..a49c9f7409ce7 100644
--- a/libraries/src/WebAuthn/Server.php
+++ b/libraries/src/WebAuthn/Server.php
@@ -358,7 +358,7 @@ public function loadAndCheckAssertionResponse(string $data, PublicKeyCredentialR
          */
         try {
             $data = @json_decode($data, true) ?? [];
-        } catch (\Exception $e) {
+        } catch (\Exception) {
             $data = [];
         }
 
@@ -367,7 +367,7 @@ public function loadAndCheckAssertionResponse(string $data, PublicKeyCredentialR
         foreach (['authenticatorData', 'clientDataJSON', 'signature', 'userHandle'] as $key) {
             try {
                 $value = Base64::decode($data['response'][$key] ?? '');
-            } catch (\Exception $e) {
+            } catch (\Exception) {
                 $value = '';
             }
             $data['response'][$key] = Base64UrlSafe::encodeUnpadded($value);
diff --git a/libraries/src/Workflow/Workflow.php b/libraries/src/Workflow/Workflow.php
index ec7dcebd0e396..6eb7d8e73475f 100644
--- a/libraries/src/Workflow/Workflow.php
+++ b/libraries/src/Workflow/Workflow.php
@@ -446,7 +446,7 @@ public function createAssociation(int $pk, int $state): bool
                 ->bind(':extension', $this->extension);
 
             $this->db->setQuery($query)->execute();
-        } catch (\Exception $e) {
+        } catch (\Exception) {
             return false;
         }
 
@@ -478,7 +478,7 @@ public function updateAssociations(array $pks, int $state): bool
                 ->bind(':extension', $this->extension);
 
             $this->db->setQuery($query)->execute();
-        } catch (\Exception $e) {
+        } catch (\Exception) {
             return false;
         }
 
@@ -508,7 +508,7 @@ public function deleteAssociation(array $pks): bool
                 ->bind(':extension', $this->extension);
 
             $this->db->setQuery($query)->execute();
-        } catch (\Exception $e) {
+        } catch (\Exception) {
             return false;
         }