Missing Authentication for Critical Function in phpMyFAQ - #VU140880
Published: August 4, 2026
Vulnerability identifier: #VU140880
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to create a backup archive containing sensitive configuration files.
The vulnerability exists due to missing authentication for a critical function in the setup backup endpoint when maintenance mode is enabled and the application handles a backup request. A remote attacker can send a specially crafted request to create a backup archive containing sensitive configuration files.
The issue is reachable only while maintenance mode is enabled, and the created archive is written under content/core/config/.
Affected software
phpMyFAQ
Remediation
Install security update from vendor's website.
phpMyFAQ - update to 4.1.7