CVE-2025-53021

Source
https://nvd.nist.gov/vuln/detail/CVE-2025-53021
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-53021.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-53021
Aliases
Related
Published
2025-06-24T20:15:26Z
Modified
2025-07-01T16:35:27.933912Z
Summary
[none]
Details

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.

References

Affected packages

Git / github.com/moodle/moodle

Affected ranges

Type
GIT
Repo
https://github.com/moodle/moodle
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed

Affected versions

v1.*

v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.0.7
v1.0.8
v1.0.9
v1.1.0
v1.1.1
v1.2.0
v1.2.1
v1.3.0

v2.*

v2.0.0
v2.0.0-rc1
v2.0.0-rc2
v2.0.1
v2.0.2
v2.1.0
v2.2.0
v2.2.0-beta
v2.2.0-rc1
v2.3.0
v2.3.0-beta
v2.3.0-rc1
v2.4.0
v2.4.0-beta
v2.4.0-rc1
v2.5.0
v2.5.0-beta
v2.5.0-rc1
v2.6.0
v2.6.0-beta
v2.6.0-rc1
v2.7.0
v2.7.0-beta
v2.7.0-rc1
v2.7.0-rc2
v2.8.0
v2.8.0-beta
v2.8.0-rc1
v2.8.0-rc2
v2.9.0
v2.9.0-beta
v2.9.0-rc1
v2.9.0-rc2

v3.*

v3.0.0
v3.0.0-beta
v3.0.0-rc1
v3.0.0-rc2
v3.0.0-rc3
v3.0.0-rc4
v3.1.0
v3.1.0-beta
v3.1.0-rc1
v3.1.0-rc2
v3.10.0
v3.10.0-beta
v3.10.0-rc1
v3.10.0-rc2
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
v3.11.2
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
v3.3.0
v3.3.0-beta
v3.3.0-rc1
v3.3.0-rc2
v3.3.0-rc3
v3.4.0
v3.4.0-beta
v3.4.0-rc1
v3.4.0-rc2
v3.4.0-rc3
v3.5.0
v3.5.0-beta
v3.5.0-rc1
v3.6.0
v3.6.0-beta
v3.6.0-rc1
v3.6.0-rc2
v3.6.0-rc3
v3.7.0
v3.7.0-beta
v3.7.0-rc1
v3.7.0-rc2
v3.8.0
v3.8.0-beta
v3.8.0-rc1
v3.9.0
v3.9.0-beta
v3.9.0-rc1
v3.9.0-rc2
v3.9.0-rc3