CVE-2025-67855: Moodle vulnerable to Cross-site Scripting
A flaw was found in Moodle. A remote attacker could exploit a reflected Cross-Site Scripting (XSS) vulnerability in the policy tool return URL. This vulnerability arises from insufficient sanitization of URL parameters, allowing attackers to inject malicious scripts through specially crafted links. Successful exploitation could lead to information disclosure or arbitrary client-side script execution within the user’s browser.
References
- access.redhat.com/security/cve/CVE-2025-67855
- bugzilla.redhat.com/show_bug.cgi?id=2423861
- github.com/advisories/GHSA-vwhw-vp9v-q9c9
- github.com/moodle/moodle
- github.com/moodle/moodle/commit/0c146aa2612fb6d0544f200a018cb42da75db713
- moodle.org/mod/forum/discuss.php?d=471305
- nvd.nist.gov/vuln/detail/CVE-2025-67855
Code Behaviors & Features
Detect and mitigate CVE-2025-67855 with GitLab Dependency Scanning
Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →