What is CVE-2026-75919?

CVE-2026-75919 is a medium-severity vulnerability in Thorsten Phpmyfaq, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2026-08-19.

How severe is CVE-2026-75919?

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

Auth bypass in Thorsten Phpmyfaq

CVE-2026-75919

phpMyFAQ before 4.1.7 contains an authentication bypass vulnerability in SetupController that allows unauthenticated attackers to run database migrations and create configuration backups when maintenance mode is enabled. Attackers can call POST /api/setup/update-database and POST /api/setup/backup endpoints to execute database updates, disable maintenance mode, and extract database credentials from generated ZIP archives.

Vulnerability class: Broken Authentication

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:N/I:N/A:L.

Affected products

Thorsten Phpmyfaq

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-75919?: CVE-2026-75919 is a medium-severity vulnerability in Thorsten Phpmyfaq, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2026-08-19.
How severe is CVE-2026-75919?: Medium severity. CVSS v3 base score is 5.3 out of 10.