Moving Media Library < 1.23 - Authenticated (Administrator+) Directory Traversal to Arbitrary File Deletion

Description

The Moving Media Library plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the generate_json_page function in all versions up to, and including, 1.22. This makes it possible for authenticated attackers, with Administrator-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php).