WP AUDIO GALLERY <= 2.0 - Authenticated (Subscriber+) Arbitrary File Deletion via 'audio_upload' Parameter

The WP AUDIO GALLERY plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in all versions up to, and including, 2.0. This is due to the `wpag_uploadaudio_callback()` AJAX handler not properly validating user-supplied file paths in the `audio_upload` parameter before passing them to `unlink()`. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when critical files like wp-config.php are deleted.

An attacker needs Subscriber access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.

• Firewall
• Scanner
• Alerts