CVE-2021-32475: Moodle

Medium severity, CVSS 5.4. EPSS: 0.6% chance of exploitation in the next 30 days.

ID numbers displayed in the quiz grading report required additional sanitizing to prevent a stored XSS risk. Moodle 3.10 to 3.10.3, 3.9 to 3.9.6, 3.8 to 3.8.8, 3.5 to 3.5.17 and earlier unsupported versions are affected.

Affected products

• Moodle Moodle: before 3.5.18 (fixed in 3.5.18); from 3.8.0, before 3.8.9 (fixed in 3.8.9); from 3.9.0, before 3.9.7 (fixed in 3.9.7); from 3.10.0, before 3.10.4 (fixed in 3.10.4)

Published 2022-03-11. Last modified 2026-06-17.