Vulnerability · Published Apr 2, 2026 · Assigned by GitHub_M

CVE-2026-34728phpMyFAQ: Path Traversal - Arbitrary File Deletion in MediaBrowserController

High 8.7

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 0.7% (higher than 54% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.7High

Exploit odds (30 days)0.7%top 46.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

phpMyFAQ is an open source FAQ web application. Prior to version 4.1.1, the MediaBrowserController::index() method handles file deletion for the media browser. When the fileRemove action is triggered, the user-supplied name parameter is concatenated with the base upload directory path without any path traversal validation. The FILTER_SANITIZE_SPECIAL_CHARS filter only encodes HTML special characters (&, ', ", <, >) and characters with ASCII value < 32, and does not prevent directory traversal sequences like ../. Additionally, the endpoint does not validate CSRF tokens, making it exploitable via CSRF attacks. This issue has been patched in version 4.1.1.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	phpmyfaq/phpmyfaq	4.1.1	GHSA-38m8-xrfj-v38x

Affected products (as reported)

Vendor	Product	Versions
thorsten	phpMyFAQ	< 4.1.1

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:H

References

https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-38m8-xrfj-v38x x_refsource_CONFIRM
https://github.com/thorsten/phpMyFAQ/releases/tag/4.1.1 x_refsource_MISC