Auth bypass in Moodle
CVE-2022-40316
The H5P activity attempts report did not filter by groups, which in separate groups mode could reveal information to non-editing teachers about attempts/users in groups they should not have access to.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.007 (49.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.001
Affected products
- Moodle
- Fedoraproject Extra Packages For Enterprise Linux — versions 8.0
- Fedoraproject Fedora — versions 35, 36
- Moodle — versions 4.0 to 4.0.3, 3.11 to 3.11.9, 3.9 to 3.9.16 and earlier unsupported versions
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- moodle.org/mod/forum/discuss.php (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-40316?
- CVE-2022-40316 is a medium-severity vulnerability in Moodle, classified under Missing Authorization. CVSS score: 4.3/10. Published 2022-09-30.
- How severe is CVE-2022-40316?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2022-40316 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.