CVE-2021-20281: Fedoraproject Fedora

Medium severity, CVSS 5.3. EPSS: 1.3% chance of exploitation in the next 30 days.

It was possible for some users without permission to view other users' full names to do so via the online users block in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.

Affected products

• Fedoraproject Fedora: version 32 only; version 34 only
• Moodle Moodle: from 3.5.0, before 3.5.17 (fixed in 3.5.17); from 3.8.0, before 3.8.8 (fixed in 3.8.8); from 3.9.0, before 3.9.5 (fixed in 3.9.5); from 3.10.0, before 3.10.2 (fixed in 3.10.2)

Published 2021-03-15. Last modified 2026-06-17.