Vulnerability · Published Jul 27, 2026 · Assigned by VulnCheck

CVE-2026-66397phpMyFAQ before 4.1.6 Path Traversal via category image deletion

High 8.6

In plain English

A high-severity path traversal in phpMyFAQ from thorsten. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).

Severity (CVSS 4.0)8.6High

Exploit odds (30 days)0.4%top 65.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

phpMyFAQ before 4.1.6 fails to validate path traversal sequences in the existing_image field during category updates, allowing authenticated attackers to delete arbitrary files by exploiting insufficient sanitization in Image::delete(). Attackers can delete the database.php configuration file to disable the installation gate and access the public setup wizard to create new superadmin accounts.

Affected products (as reported)

Vendor	Product	Versions
thorsten	phpMyFAQ	0 – before 4.1.6

Weakness: CWE-22 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

GitHub Security Advisory (GHSA-mh9w-5hr8-3272) vendor-advisory
VulnCheck Advisory: phpMyFAQ before 4.1.6 Path Traversal via category image deletion third-party-advisory