CSRF in Moodle

CVE-2018-16854

A flaw was found in moodle versions 3.5 to 3.5.2, 3.4 to 3.4.5, 3.3 to 3.3.8, 3.1 to 3.1.14 and earlier. The login form is not protected by a token to prevent login cross-site request forgery. Fixed versions include 3.6, 3.5.3, 3.4.6, 3.3.9 and 3.1.15.

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.022 (80.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-16854?
CVE-2018-16854 is a medium-severity vulnerability in Moodle, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2018-11-26.
How severe is CVE-2018-16854?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2018-16854 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.