Fix reflected XSS in install.php by escaping 'asdf' GET parameter

[zeropath-ai-staging]

Summary

This reflected Cross-Site Scripting (XSS) vulnerability allows attackers to execute arbitrary JavaScript in a victim's browser, potentially leading to account compromise or data theft. In install.php, lines 12-13, the application echoes the unsanitized 'asdf' GET parameter directly into the HTTP response, which causes the browser to execute any JavaScript embedded in the URL. An attacker could craft a malicious URL like '?asdf=<script>alert("XSS")</script>' to trigger the vulnerability.

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Vulnerability Details

• Vulnerability Class: Cross Site Scripting (XSS)
• Severity: 8.0
• Affected File: install.php
• Vulnerable Lines: 12-13

Code Snippets

diff --git a/install.php b/install.php
--- a/install.php
+++ b/install.php
@@ -9,7 +9,7 @@
 //----------------------------------------------------------- include
 define('PHPWG_ROOT_PATH','./');
 
-echo $_GET['asdf'];
+echo htmlspecialchars($_GET['asdf'], ENT_QUOTES, 'UTF-8');
 
 // @set_magic_quotes_runtime(0); // Disable magic_quotes_runtime
 //

How to Modify the Patch

You can modify this patch by using one of the two methods outlined below. We recommend using the @zeropath-ai bot for updating the code. If you encounter any bugs or issues with the patch, please report them here.

Ask @zeropath-ai!

To request modifications, please post a comment beginning with @zeropath-ai and specify the changes required.

@zeropath-ai will then implement the requested adjustments and commit them to the specified branch in this pull request. Our bot is capable of managing changes across multiple files and various development-related requests.

Manually Modify the Files

# Checkout created branch:
git checkout zvuln_fix_a82c65ba

# if vscode is installed run (or use your favorite editor / IDE):
code install.php

# Add, commit, and push changes:
git add -A
git commit -m "Update generated patch with x, y, and z changes."
git push zvuln_fix_a82c65ba