CVE-2026-26046: Moodle

High severity, CVSS 7.2. EPSS: 3.1% chance of exploitation in the next 30 days.

A vulnerability was found in a Moodle TeX filter administrative setting where insufficient sanitization of configuration input could allow command injection. On sites where the TeX filter is enabled and ImageMagick is installed, a maliciously crafted setting value entered by an administrator could result in unintended system command execution. While exploitation requires administrative privileges, successful compromise could affect the entire Moodle server.

Affected products

• Moodle Moodle: before 4.5.9 (fixed in 4.5.9); from 5.0.0, before 5.0.5 (fixed in 5.0.5); from 5.1.0, before 5.1.2 (fixed in 5.1.2)

Published 2026-02-21. Last modified 2026-06-17.