WPBot Pro Wordpress Chatbot <= 13.6.2 - Authenticated (Subscriber+) Arbitrary File Deletion

The WPBot Pro Wordpress Chatbot plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the qcld_openai_delete_training_file() function in all versions up to, and including, 13.6.2. 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).