CVE-2025-3645: Moodle

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

A flaw was found in Moodle. Insufficient capability checks in a messaging web service allowed users to view other users' names and online statuses.

Affected products

• Moodle Moodle: before 4.1.18 (fixed in 4.1.18); from 4.3.0, before 4.3.12 (fixed in 4.3.12); from 4.4.0, before 4.4.8 (fixed in 4.4.8); from 4.5.0, before 4.5.4 (fixed in 4.5.4)

Published 2025-04-25. Last modified 2026-06-17.