CVE-2025-67849
High
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.
SeverityHigh
CVSS7.3
Exploit probability—
Product
Moodle
PublishedFeb 3, 2026
First seenFeb 3, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- moodle moodle4.5.8, 5.0.4 or later
- moodle/moodle4.1.22, 4.4.12, 4.5.8, 5.0.4, 5.1.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| moodle moodle | 4.5.0 ≤ v < 4.5.8, 5.0.0 ≤ v < 5.0.4, 5.1.0 | 4.5.8, 5.0.4 |
| moodle/moodlePackagist | v < 4.1.22, 4.4.0-beta ≤ v < 4.4.12, 4.5.0-beta ≤ v < 4.5.8, 5.0.0-beta ≤ v < 5.0.4, 5.1.0-beta ≤ v < 5.1.1 | 4.1.22, 4.4.12, 4.5.8, 5.0.4, 5.1.1 |
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