AI ChatBot <= 5.3.4 - Missing Authorization via openai_file_upload_callback

The AI ChatBot plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the openai_file_upload_callback function in all versions up to, and including, 5.3.4. This makes it possible for authenticated attackers, with subscriber-level access and above, to upload files to a linked OpenAI account.