CVE-2020-25629: Moodle

High severity, CVSS 8.8. EPSS: 1.3% chance of exploitation in the next 30 days.

A vulnerability was found in Moodle where users with "Log in as" capability in a course context (typically, course managers) may gain access to some site administration capabilities by "logging in as" a System manager. This affects 3.9 to 3.9.1, 3.8 to 3.8.4, 3.7 to 3.7.7, 3.5 to 3.5.13 and earlier unsupported versions. This is fixed in 3.9.2, 3.8.5, 3.7.8 and 3.5.14.

Affected products

• Moodle Moodle: from 3.5.0, before 3.5.14 (fixed in 3.5.14); from 3.7.0, before 3.7.8 (fixed in 3.7.8); from 3.8.0, before 3.8.5 (fixed in 3.8.5); from 3.9.0, before 3.9.2 (fixed in 3.9.2)

Published 2020-12-08. Last modified 2026-06-17.