WooCommerce Support Ticket System <= 17.7 - Authenticated (Subscriber+) Arbitrary File Deletion

The WooCommerce Support Ticket System plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the delete_uploaded_file() function in all versions up to, and including, 17.7. 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 the right file is deleted (such as wp-config.php).