Kognetiks Chatbot for WordPress <= 1.9.9 - Unauthenticated Arbitrary File Upload via chatbot_chatgpt_upload_file_to_assistant Function

The Kognetiks Chatbot for WordPress plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the chatbot_chatgpt_upload_file_to_assistant function in all versions up to, and including, 1.9.9. This makes it possible for unauthenticated attackers, with to upload arbitrary files on the affected site's server which may make remote code execution possible.