CVE-2026-75919: Missing Authentication for Critical Function in thorsten phpMyFAQ
Description
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.
CVSS v4.0
Score 6.9medium
Affected software
thorsten
phpMyFAQ
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-75919 is an authentication bypass vulnerability in phpMyFAQ prior to version 4.1.7. The vulnerability exists in the SetupController, permitting unauthenticated attackers to invoke POST /api/setup/update-database and POST /api/setup/backup endpoints. This enables attackers to run database migrations, disable maintenance mode, and retrieve sensitive database credentials from generated ZIP backup files. The vulnerability requires maintenance mode to be enabled to be exploitable.
Potential Impact
An attacker without any authentication can execute critical functions such as database migrations and configuration backups. This can lead to unauthorized modification of the database schema, disabling of maintenance mode, and exposure of sensitive database credentials, potentially compromising the confidentiality and integrity of the application data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the maintenance mode functionality and the affected API endpoints, and monitor for unauthorized access attempts.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-18T15:05:54.226Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a85bc6bacd9273b492f486c
Added to database: 08/19/2026, 14:23:39 UTC
Last enriched: 08/19/2026, 15:08:31 UTC
Last updated: 10/04/2026, 10:02:29 UTC
Views: 51
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