CVE-2025-67850 - CVE House
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Status published High CVE-2025-67850

Moodle: moodle: cross-site scripting vulnerability via inadequate input filtering in formula editor

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Red Hat would like to thank Aleksey Solovev for reporting this issue.

Affected Vendor

Affected Software

Unknown
Vulnerable Versions:
4.1.0, 4.4.0, 4.5.0, 5.0.0, 5.1.0

Timeline

Official Publish: February 3rd, 2026
Last Modified: February 26th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Weaknesses (CWE)