CVE-2018-1133: Moodle

High severity, CVSS 8.8. EPSS: 31.3% chance of exploitation in the next 30 days.

An issue was discovered in Moodle 3.x. A Teacher creating a Calculated question can intentionally cause remote code execution on the server, aka eval injection.

Affected products

• Moodle Moodle: from 3.1.0, up to and including 3.1.11; from 3.2.0, up to and including 3.2.8; from 3.3.0, up to and including 3.3.5; from 3.4.0, up to and including 3.4.2

Published 2018-05-25. Last modified 2026-06-17.