Information disclosure in Moodle

CVE-2023-5551

Separate Groups mode restrictions were not honoured in the forum summary report, which would display users from other groups.

Vulnerability class: Information Disclosure

EPSS: 0.003 (20.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

Moodle
Fedoraproject Extra_packages_for_enterprise_linux — versions 7.0
Fedoraproject Fedora — versions 38

Weakness classification (CWE)

CWE-200 — Information Disclosure

Public proof-of-concept exploits

jev770/badmoodle-scan

References

patrick@puiterwijk.org (Patch)
patrick@puiterwijk.org (x_refsource_REDHAT, issue-tracking, Patch, Third Party Advisory, Issue Tracking)
patrick@puiterwijk.org (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-5551?: CVE-2023-5551 is a low-severity vulnerability in Moodle, classified under Information Disclosure. CVSS score: 3.3/10. Published 2023-11-09.
How severe is CVE-2023-5551?: Low severity. CVSS v3 base score is 3.3 out of 10.
Is CVE-2023-5551 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.