GHSA-6mmv-f6c6-v6q8
Moodle vulnerable to Cross-site Scripting
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | moodle/moodle | < 4.1.22 | 4.1.22 |
| Packagist | moodle/moodle | >= 4.4.0-beta, < 4.4.12 | 4.4.12 |
| Packagist | moodle/moodle | >= 4.5.0-beta, < 4.5.8 | 4.5.8 |
| Packagist | moodle/moodle | >= 5.0.0-beta, < 5.0.4 | 5.0.4 |
| Packagist | moodle/moodle | >= 5.1.0-beta, < 5.1.1 | 5.1.1 |
Details
As written in the advisory (Markdown source, shown as plain text).
A flaw was found in Moodle. This vulnerability, known as Cross-site Scripting (XSS), occurs due to insufficient checks on user-provided data in the formula editor's arithmetic expression fields. A remote attacker could inject malicious code into these fields. When other users view these expressions, the malicious code would execute in their web browsers, potentially compromising their data or leading to unauthorized actions.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2025-67850
- https://github.com/moodle/moodle/commit/c85f153068a717a3b28bc122e75154bac99e67e1
- https://access.redhat.com/security/cve/CVE-2025-67850
- https://bugzilla.redhat.com/show_bug.cgi?id=2423838
- https://github.com/moodle/moodle
- https://moodle.org/mod/forum/discuss.php?d=471300