What’s Vulnerable › Vulnerabilities
CVE-2021-32478
- Severity: medium (CVSS 6.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.1% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2022-03-11 · updated 2026-06-17
- Weakness: CWE-79
Description
The redirect URI in the LTI authorization endpoint required extra sanitizing to prevent reflected XSS and open redirect risks. Moodle versions 3.10 to 3.10.3, 3.9 to 3.9.6, 3.8 to 3.8.8 and earlier unsupported versions are affected.
Affected products
- Moodle: before 3.8.9; from 3.9.0 before 3.9.7; from 3.10.0 before 3.10.4 — fixed in 3.10.4, 3.8.9, 3.9.7
How to fix
Upgrade to a fixed version: Moodle 3.10.4, 3.8.9, 3.9.7. Check the vendor advisory for mitigations.
References
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