What is CVE-2022-0335?

CVE-2022-0335 is a high-severity vulnerability in Moodle, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2022-01-25.

How severe is CVE-2022-0335?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2022-0335 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

CSRF in Moodle

CVE-2022-0335

A flaw was found in Moodle in versions 3.11 to 3.11.4, 3.10 to 3.10.8, 3.9 to 3.9.11 and earlier unsupported versions. The "delete badge alignment" functionality did not include the necessary token check to prevent a CSRF risk.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2022-01-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (47.1th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.1% 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: 0.006 · change: 0.000

Affected products

Moodle
Moodle — versions moodle 3.11.5, moodle 3.10.9 and moodle 3.9.12

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

Public proof-of-concept exploits

jev770/badmoodle-scan

References

bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
moodle.org/mod/forum/discuss.php (Vendor Advisory)

Frequently asked questions

What is CVE-2022-0335?: CVE-2022-0335 is a high-severity vulnerability in Moodle, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2022-01-25.
How severe is CVE-2022-0335?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2022-0335 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.