CVE-2011-4584: Moodle

Medium severity, CVSS 4.0. EPSS: 1.7% chance of exploitation in the next 30 days.

The MNET authentication functionality in Moodle 1.9.x before 1.9.15, 2.0.x before 2.0.6, and 2.1.x before 2.1.3 allows remote authenticated users to impersonate other user accounts by using the Login As feature in conjunction with a remote MNET single sign-on capability, as demonstrated by a Mahara site.

Affected products

• Moodle Moodle: version 1.9.1 only; version 1.9.2 only; version 1.9.3 only; version 1.9.4 only; version 1.9.5 only; version 1.9.6 only; …

Published 2012-07-20. Last modified 2026-06-16.