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Description

A flaw was found in Moodle. This authentication bypass vulnerability allows suspended users to authenticate through the Learning Tools Interoperability (LTI) Provider. The issue arises from the LTI authentication handlers failing to enforce the user's suspension status, enabling unauthorized access to the system. This can lead to information disclosure or other unauthorized actions by users who should be restricted.

PUBLISHED Reserved 2025-12-12 | Published 2026-02-03 | Updated 2026-02-04 | Assigner fedora




HIGH: 8.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Problem types

Improper Handling of Insufficient Permissions or Privileges

Product status

Default status
unaffected

4.1.0 (semver) before 4.1.22
affected

4.4.0 (semver) before 4.4.12
affected

4.5.0 (semver) before 4.5.8
affected

5.0.0 (semver) before 5.0.4
affected

5.1.0 (semver) before 5.1.1
affected

Timeline

2025-12-19:Reported to Red Hat.
2025-12-15:Made public.

Credits

Red Hat would like to thank Attilio Ferrari for reporting this issue.

References

access.redhat.com/security/cve/CVE-2025-67848 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2423831 (RHBZ#2423831) issue-tracking

moodle.org/mod/forum/discuss.php?d=471298

cve.org (CVE-2025-67848)

nvd.nist.gov (CVE-2025-67848)

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