What is CVE-2023-28335?

CVE-2023-28335 is a high-severity vulnerability in Moodle, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2023-03-23.

How severe is CVE-2023-28335?

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

Is CVE-2023-28335 known to be exploited?

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

CSRF in Moodle

CVE-2023-28335

The link to reset all templates of a database activity did not include the necessary token to prevent a CSRF risk.

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.004 (33.5th percentile) — read the EPSS interpretation.

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.

Affected products

Moodle — versions 4.1.0, 4.1.1

Weakness classification (CWE)

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

Public proof-of-concept exploits

jev770/badmoodle-scan

References

patrick@puiterwijk.org (x_refsource_REDHAT, issue-tracking)
patrick@puiterwijk.org (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-28335?: CVE-2023-28335 is a high-severity vulnerability in Moodle, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2023-03-23.
How severe is CVE-2023-28335?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2023-28335 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.