CVE-2026-34728: Phpmyfaq

High severity, CVSS 8.1. EPSS: 0.8% chance of exploitation in the next 30 days.

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 products

• Phpmyfaq Phpmyfaq: before 4.1.1 (fixed in 4.1.1)

Published 2026-04-02. Last modified 2026-06-17.