What is CVE-2026-111902?

CVE-2026-111902 is a medium-severity vulnerability in Thorsten Phpmyfaq, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2026-10-17.

How severe is CVE-2026-111902?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Thorsten Phpmyfaq

CVE-2026-111902

phpMyFAQ 4.2.0-alpha before 4.2.0-beta contains an authorization bypass vulnerability in isFaqAccessibleForUser() that treats a missing FAQ translation as visible to unauthenticated users. Attackers can send a mismatched Accept-Language header to the comments and attachments API endpoints to read comments and attachment listings of unpublished or ACL-restricted FAQs.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2026-10-17 · last modified 2026-10-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Thorsten Phpmyfaq

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

github.com/thorsten/phpMyFAQ/security/advisories/GHSA-g6fj-8cjr-wrxv (vendor-advisory)
www.vulncheck.com/advisories/phpmyfaq-4.2.0-alpha-before-4.2.0-beta-authorizati… (third-party-advisory)

Frequently asked questions

What is CVE-2026-111902?: CVE-2026-111902 is a medium-severity vulnerability in Thorsten Phpmyfaq, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2026-10-17.
How severe is CVE-2026-111902?: Medium severity. CVSS v3 base score is 5.3 out of 10.