CVE-2025-53021
CVE-2025-53021
This page contains facts from public vulnerability sources. Check the original advisory before updating.
A session fixation vulnerability in Moodle 3.x through 3.11.18 allows unauthenticated attackers to hijack user sessions via the sesskey parameter. The sesskey can be obtained without authentication and reused within the OAuth2 login flow, resulting in the victim's session being linked to the attacker's. Successful exploitation results in full account takeover. According to the Moodle Releases page, "Bug fixes for security issues in 3.11.x ended 11 December 2023." NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
CVSS 4.2 · Medium · EPSS 0.3% · Fix available
- Published
- Updated
Affected products and versions
moodle
- Versions
- ≥ 3, ≤ 3.11.18: Affected (custom)
No fix published
moodle/moodle Packagist
- Versions
- v3.0.0
- v3.0.1
- v3.0.10
- v3.0.2
- v3.0.3
- v3.0.4
- v3.0.5
- v3.0.6
- v3.0.7
- v3.0.8
- v3.0.9
- v3.1.0
- v3.1.0-beta
- v3.1.0-rc1
- v3.1.0-rc2
- v3.1.1
- v3.1.10
- v3.1.11
- v3.1.12
- v3.1.13
- v3.1.14
- v3.1.15
- v3.1.16
- v3.1.17
- v3.1.18
- v3.1.2
- v3.1.3
- v3.1.4
- v3.1.5
- v3.1.6
- v3.1.7
- v3.1.8
- v3.1.9
- v3.10.0
- v3.10.0-beta
- v3.10.0-rc1
- v3.10.0-rc2
- v3.10.1
- v3.10.10
- v3.10.11
- v3.10.2
- v3.10.3
- v3.10.4
- v3.10.5
- v3.10.6
- v3.10.7
- v3.10.8
- v3.10.9
- v3.11.0
- v3.11.0-beta
- v3.11.0-rc1
- v3.11.0-rc2
- v3.11.1
- v3.11.10
- v3.11.11
- v3.11.12
- v3.11.13
- v3.11.14
- v3.11.15
- v3.11.16
- v3.11.17
- v3.11.18
- v3.11.2
- v3.11.3
- v3.11.4
- v3.11.5
- v3.11.6
- v3.11.7
- v3.11.8
- v3.11.9
- v3.2.0
- v3.2.0-beta
- v3.2.0-rc1
- v3.2.0-rc2
- v3.2.0-rc3
- v3.2.0-rc4
- v3.2.0-rc5
- v3.2.1
- v3.2.2
- v3.2.3
- v3.2.4
- v3.2.5
- v3.2.6
- v3.2.7
- v3.2.8
- v3.2.9
- v3.3.0
- v3.3.0-beta
- v3.3.0-rc1
- v3.3.0-rc2
- v3.3.0-rc3
- v3.3.1
- v3.3.2
- v3.3.3
- v3.3.4
- v3.3.5
- v3.3.6
- v3.3.7
- v3.3.8
- v3.3.9
- v3.4.0
- v3.4.0-beta
- v3.4.0-rc1
- v3.4.0-rc2
- v3.4.0-rc3
- v3.4.1
- v3.4.2
- v3.4.3
- v3.4.4
- v3.4.5
- v3.4.6
- v3.4.7
- v3.4.8
- v3.4.9
- v3.5.0
- v3.5.0-beta
- v3.5.0-rc1
- v3.5.1
- v3.5.10
- v3.5.11
- v3.5.12
- v3.5.13
- v3.5.14
- v3.5.15
- v3.5.16
- v3.5.17
- v3.5.18
- v3.5.2
- v3.5.3
- v3.5.4
- v3.5.5
- v3.5.6
- v3.5.7
- v3.5.8
- v3.5.9
- v3.6.0
- v3.6.0-beta
- v3.6.0-rc1
- v3.6.0-rc2
- v3.6.0-rc3
- v3.6.1
- v3.6.10
- v3.6.2
- v3.6.3
- v3.6.4
- v3.6.5
- v3.6.6
- v3.6.7
- v3.6.8
- v3.6.9
- v3.7.0
- v3.7.0-beta
- v3.7.0-rc1
- v3.7.0-rc2
- v3.7.1
- v3.7.2
- v3.7.3
- v3.7.4
- v3.7.5
- v3.7.6
- v3.7.7
- v3.7.8
- v3.7.9
- v3.8.0
- v3.8.0-beta
- v3.8.0-rc1
- v3.8.1
- v3.8.2
- v3.8.3
- v3.8.4
- v3.8.5
- v3.8.6
- v3.8.7
- v3.8.8
- v3.8.9
- v3.9.0
- v3.9.0-beta
- v3.9.0-rc1
- v3.9.0-rc2
- v3.9.0-rc3
- v3.9.1
- v3.9.10
- v3.9.11
- v3.9.12
- v3.9.13
- v3.9.14
- v3.9.15
- v3.9.16
- v3.9.17
- v3.9.18
- v3.9.19
- v3.9.2
- v3.9.20
- v3.9.21
- v3.9.22
- v3.9.23
- v3.9.24
- v3.9.25
- v3.9.3
- v3.9.4
- v3.9.5
- v3.9.6
- v3.9.7
- v3.9.8
- v3.9.9
- v4.0.0-beta
- v4.0.0-rc1
- v4.0.0-rc2
- v4.0.0-rc3
- v4.0.0-rc4
- Affected ranges
- ECOSYSTEM: ≥ 3.0.0, < 4.0.0
Update to 4.0.0
moodle Ubuntu:Pro:16.04:LTS
- Versions
- 2.7.9+dfsg-1
- 2.7.10+dfsg-1
- 2.7.11+dfsg-1
- 2.7.11+dfsg-2
- 2.7.12+dfsg-1
- 3.0.3+dfsg-0ubuntu1
- 3.0.3+dfsg-0ubuntu1+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
moodle Ubuntu:Pro:18.04:LTS
- Versions
- 3.0.3+dfsg-0ubuntu1
- 3.0.3+dfsg-0ubuntu1+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published