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  5. CVE-2021-36394

CVE-2021-36394: Moodle Session Fixation vulnerability

March 6, 2023 (updated March 6, 2025)

In Moodle, a remote code execution risk was identified in the Shibboleth authentication plugin.

References

  • github.com/advisories/GHSA-2563-fp9c-mgm8
  • github.com/moodle/moodle
  • moodle.org/mod/forum/discuss.php?d=424799
  • nvd.nist.gov/vuln/detail/CVE-2021-36394

Code Behaviors & Features

Detect and mitigate CVE-2021-36394 with GitLab Dependency Scanning

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Affected versions

All versions before 3.9.8, all versions starting from 3.10.0-beta before 3.10.5, all versions starting from 3.11.0-beta before 3.11.1

Fixed versions

  • 3.11.1
  • 3.10.5
  • 3.9.8

Solution

Upgrade to versions 3.10.5, 3.11.1, 3.9.8 or above.

Impact 9.8 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-384: Session Fixation
  • CWE-94: Improper Control of Generation of Code ('Code Injection')

Source file

packagist/moodle/moodle/CVE-2021-36394.yml

Spotted a mistake? Edit the file on GitLab.

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