A SQL Injection vulnerability in get_topic_info() in sys/CODOF/Forum/Topic.php in Codoforum before 4.9 allows remote attackers (pre-authentication) to bypass the admin page via a leaked password-reset token of the admin. (As an admin, an attacker can upload a PHP shell and execute remote code on the operating system.)

References

• https://nvd.nist.gov/vuln/detail/CVE-2020-13873
• https://blog.sonarsource.com/codoforum-4.8.7-critical-code-vulnerabilities-explained
• https://community.sonarsource.com/c/announce/stories/23
• https://community.sonarsource.com/t/codoforum-4-8-7-critical-code-vulnerabilities-explained/28297
• https://github.com/SmashITs
• https://twitter.com/sonarsource/status/1300818196090384384
• http://codologic.com/forum/