CVE-2018-16854: Moodle

High severity, CVSS 8.8. EPSS: 2.3% chance of exploitation in the next 30 days.

A flaw was found in moodle versions 3.5 to 3.5.2, 3.4 to 3.4.5, 3.3 to 3.3.8, 3.1 to 3.1.14 and earlier. The login form is not protected by a token to prevent login cross-site request forgery. Fixed versions include 3.6, 3.5.3, 3.4.6, 3.3.9 and 3.1.15.

Affected products

• Moodle Moodle: up to and including 3.0.10; from 3.1.0, before 3.1.15 (fixed in 3.1.15); from 3.3.0, before 3.3.9 (fixed in 3.3.9); from 3.4.0, before 3.4.6 (fixed in 3.4.6); from 3.5.0, before 3.5.3 (fixed in 3.5.3)

Published 2018-11-26. Last modified 2026-06-17.