CVE-2021-36394
In Moodle, a remote code execution risk was identified in the Shibboleth authentication plugin.
- Published
- Mar 6, 2023
- Updated
- Mar 6, 2025
- Assigning CNA
- fedora
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 94.0%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
In Moodle, a remote code execution risk was identified in the Shibboleth authentication plugin.
Sources
2- CVE-2021-36394Exploit
Proof-of-concept exploit for CVE-2021-36394 in Moodle, enabling admin password takeover and remote code execution via custom PHP functions.
Pre-authentication remote code execution exploit targeting Moodle's Shibboleth authentication module. Includes Docker-based lab environment for testing and education.
Responsible use
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