Improper Neutralization of Argument Delimiters in a Command in phpMyFAQ - #VU140891
Published: August 4, 2026
Vulnerability identifier: #VU140891
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-88
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper neutralization of wildcard characters in PostgreSQL search backend when processing user-supplied search terms. A remote attacker can submit search terms containing % or _ characters to cause a denial of service.
Only deployments using the native PostgreSQL pgsql extension backend are vulnerable; the PDO PostgreSQL backend is not affected.
Affected software
phpMyFAQ
Remediation
Install security update from vendor's website.
phpMyFAQ - update to 4.1.7