High severityOSV Advisory· Published Feb 3, 2026· Updated Feb 26, 2026
Moodle: moodle: cross-site scripting (xss) via improper sanitization of ai prompt responses
CVE-2025-67849
Description
A flaw was found in Moodle. This cross-site scripting (XSS) vulnerability, caused by improper sanitization of AI prompt responses, allows attackers to inject malicious HTML or script into web pages. When other users view these compromised pages, their sessions could be stolen, or the user interface could be manipulated.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
moodle/moodlePackagist | < 4.1.22 | 4.1.22 |
moodle/moodlePackagist | >= 4.4.0-beta, < 4.4.12 | 4.4.12 |
moodle/moodlePackagist | >= 4.5.0-beta, < 4.5.8 | 4.5.8 |
moodle/moodlePackagist | >= 5.0.0-beta, < 5.0.4 | 5.0.4 |
moodle/moodlePackagist | >= 5.1.0-beta, < 5.1.1 | 5.1.1 |
Affected products
3- osv-coords2 versions
>= 4.5.0, < 4.5.8+ 1 more
- (no CPE)range: >= 4.5.0, < 4.5.8
- (no CPE)range: < 4.1.22
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-mhf6-pp52-8wqjghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-67849ghsaADVISORY
- access.redhat.com/security/cve/CVE-2025-67849ghsavdb-entryx_refsource_REDHATWEB
- bugzilla.redhat.com/show_bug.cgighsaissue-trackingx_refsource_REDHATWEB
- github.com/moodle/moodle/commit/a3063dcaa44dbe66e60a37cadb33bfadfe4feb03ghsaWEB
- moodle.org/mod/forum/discuss.phpghsaWEB
News mentions
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