CVE-2026-123655
Moodle: missing access checks on h5p content files
A flaw was found in Moodle. Insufficient access control checks on H5P content files allow unauthenticated remote attackers to view restricted materials, including content stored in the system context and files belonging to hidden or unavailable course modules. This issue results in unauthorized information disclosure of protected content.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
moodle
https://github.com/moodle/moodle |
≥ 4.5.0; < 4.5.15 (affected, semver) ≥ 5.0.0; < 5.0.11 (affected, semver) ≥ 5.1.0; < 5.1.8 (affected, semver) ≥ 5.2.0; < 5.2.4 (affected, semver) Other versions: unaffected |
CNA: fedora |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 7.5 high |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | CNA: fedora |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://access.redhat.com/security/cve/CVE-2026-123655CNA: fedora · vdb-entry, x_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2568053CNA: fedora · issue-tracking, x_refsource_REDHAT
- https://github.com/moodle/moodle/commit/4b42ce4ed1d132214fd4b7d4b5f4f0387ec28a49CNA: fedora
- https://moodle.org/mod/forum/discuss.php?d=482830CNA: fedora
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