CVE-2025-67849

HIGH 7.3

Moodle: moodle: cross-site scripting (xss) via improper sanitization of ai prompt responses

CVSS Score

7.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Published	Feb 3, 2026
Last Updated	Feb 26, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

References

NVD ↗ CVE.org ↗ EPSS Data ↗

access.redhat.com: https://access.redhat.com/security/cve/CVE-2025-67849 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2423835

Credits

Red Hat would like to thank Vuln37 for reporting this issue.