The AI ChatBot plugin for WordPress is vulnerable to unauthorized use of AJAX actions due to missing capability checks on the corresponding functions in versions up to, and including, 4.8.9 as well as 4.9.2. This makes it possible for unauthenticated attackers to perform some of those actions that were intended for higher privileged users.

The AI ChatBot plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 4.8.9 and 4.9.2. This is due to missing or incorrect nonce validation on the corresponding functions. This makes it possible for unauthenticated attackers to invoke those functions via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The AI ChatBot plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 4.8.9 as well as version 4.9.2. This makes it possible for authenticated attackers with subscriber privileges to delete arbitrary files on the server, which makes it possible to take over affected sites as well as others sharing the same hosting account. Version 4.9.1 originally addressed the issue, but it was reintroduced in 4.9.2 and fixed again in 4.9.3.

The AI ChatBot for WordPress is vulnerable to Directory Traversal in versions up to, and including, 4.8.9 as well as 4.9.2 via the qcldopenaiuploadpagetrainingfile function. This allows subscriber-level attackers to append "<?php" to any existing file on the server resulting in potential DoS when appended to critical files such as wp-config.php.