CVE-2013-4313: Moodle

High severity, CVSS 7.5. EPSS: 1.2% chance of exploitation in the next 30 days.

Moodle through 2.2.11, 2.3.x before 2.3.9, 2.4.x before 2.4.6, and 2.5.x before 2.5.2 does not prevent use of '\0' characters in query strings, which might allow remote attackers to conduct SQL injection attacks against Microsoft SQL Server via a crafted string.

Affected products

• Moodle Moodle: up to and including 2.2.11; version 2.2.0 only; version 2.2.1 only; version 2.2.2 only; version 2.2.3 only; version 2.2.4 only; …

Published 2013-09-16. Last modified 2026-06-16.