CVE-2026-123655
Moodle: missing access checks on h5p content files
CVE-2026-123655 is a high vulnerability (CVSS 7.5) in moodle, published November 6, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.62%, the 50th percentile. No source names a fixed version.
- Severity
- 7.5 HighCVSS 3.1, CVE List
- Exploit chance
- 0.62%EPSS, 50th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
Affected packages
| Package | Affected | Fixed |
|---|---|---|
moodleUbuntu:Pro:16.04:LTS | All versions, plus listed versions 2.7.9+dfsg-12.7.10+dfsg-12.7.11+dfsg-12.7.11+dfsg-22.7.12+dfsg-13.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1 | None known |
moodleUbuntu:Pro:18.04:LTS | All versions, plus listed versions 3.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1 | None known |
What each source reports
CVE List Score used
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.
- Record
CVE-2026-123655- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-862
- Updated
- 2026-11-06
EUVDEUVD-2026-118220
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.
- Record
EUVD-2026-118220- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-06
GitHub AdvisoriesGHSA-6fjj-67pc-89w4
A flaw was found in Moodle. Insufficient access control checks on H5P content files allow...
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.
- Record
GHSA-6fjj-67pc-89w4- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-862
- Updated
- 2026-11-06
NVD
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.
- Record
CVE-2026-123655- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-862
- Updated
- 2026-11-12
OSV
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.
- Record
CVE-2026-123655- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-862
- Updated
- 2026-11-08
OSVUBUNTU-CVE-2026-123655
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.
- Record
UBUNTU-CVE-2026-123655- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-10
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases, references | OSV | |
| references | EUVD, NVD, OSV | |
| published | CVE List, EUVD | |
| published | EUVD, NVD | |
| aliases, published | EUVD | |
| aliases, references | GitHub Advisories | |
| first indexed | CVE List |
Dates are when Every CVE recorded each change. Upstream dates may differ.