What is CVE-2024-43428?

CVE-2024-43428 is a high-severity vulnerability in Moodle, classified under Insufficient Verification of Data Authenticity. CVSS score: 7.7/10. Published 2024-11-07.

How severe is CVE-2024-43428?

High severity. CVSS v3 base score is 7.7 out of 10.

Vulnerability in Moodle

CVE-2024-43428

To address a cache poisoning risk in Moodle, additional validation for local storage was required.

Published 2024-11-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (4.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Moodle

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

References

bugzilla.redhat.com/show_bug.cgi (Permissions Required, issue-tracking)
moodle.org/mod/forum/discuss.php (Vendor Advisory)

Frequently asked questions

What is CVE-2024-43428?: CVE-2024-43428 is a high-severity vulnerability in Moodle, classified under Insufficient Verification of Data Authenticity. CVSS score: 7.7/10. Published 2024-11-07.
How severe is CVE-2024-43428?: High severity. CVSS v3 base score is 7.7 out of 10.