What is CVE-2025-62398?

CVE-2025-62398 is a medium-severity vulnerability in Moodle, classified under Improper Authentication. CVSS score: 5.4/10. Published 2025-10-23.

How severe is CVE-2025-62398?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Auth bypass in Moodle

CVE-2025-62398

A serious authentication flaw allowed attackers with valid credentials to bypass multi-factor authentication under certain conditions, potentially compromising user accounts.

Vulnerability class: Broken Authentication

EPSS: 0.002 (14.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Moodle

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

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

Frequently asked questions

What is CVE-2025-62398?: CVE-2025-62398 is a medium-severity vulnerability in Moodle, classified under Improper Authentication. CVSS score: 5.4/10. Published 2025-10-23.
How severe is CVE-2025-62398?: Medium severity. CVSS v3 base score is 5.4 out of 10.