What is CVE-2026-24420?

CVE-2026-24420 is a medium-severity vulnerability in Phpmyfaq, classified under Improper Access Control. CVSS score: 6.5/10. Published 2026-01-24.

How severe is CVE-2026-24420?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Phpmyfaq

CVE-2026-24420

phpMyFAQ is an open source FAQ web application. Versions 4.0.16 and below allow an authenticated user without the dlattachment permission to download FAQ attachments due to a incomprehensive permissions check. The presence of a right key is improperly validated as proof of authorization in attachment.php. Additionally, the group and user permission logic contains a flawed conditional expression that may allow unauthorized access. This issue has been fixed in version

EPSS: 0.004 (34.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Phpmyfaq
Thorsten Phpmyfaq — versions < 4.0.17

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-24420?: CVE-2026-24420 is a medium-severity vulnerability in Phpmyfaq, classified under Improper Access Control. CVSS score: 6.5/10. Published 2026-01-24.
How severe is CVE-2026-24420?: Medium severity. CVSS v3 base score is 6.5 out of 10.