Auth bypass in Thorsten Phpmyfaq
CVE-2026-111900
phpMyFAQ before 4.1.9 and 4.2.0-alpha before 4.2.0-beta contains an improper authorization vulnerability in attachment.php that fails to verify whether an attachment's parent FAQ is published or visible to the requester. Authenticated users with the dlattachment permission can request index.php?action=attachment&id=<ID> to download complete attachment files belonging to draft FAQs.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/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
Weakness classification (CWE)
References
- github.com/thorsten/phpMyFAQ/security/advisories/GHSA-h76j-35m7-3mwq (vendor-advisory)
- www.vulncheck.com/advisories/phpmyfaq-before-4.1.9-and-4.2.0-alpha-before-4.2.0… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111900?
- CVE-2026-111900 is a medium-severity vulnerability in Thorsten Phpmyfaq, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-10-17.
- How severe is CVE-2026-111900?
- Medium severity. CVSS v3 base score is 4.3 out of 10.