FastApiAdmin Scheduled Task API controller.py user_avatar_upload_controller unrestricted upload

A flaw has been found in FastApiAdmin up to 2.2.0. This issue affects the function user_avatar_upload_controller of the file /backend/app/api/v1/module_system/user/controller.py of the component Scheduled Task API. Executing a manipulation can lead to unrestricted upload. The attack can be launched remotely. The exploit has been published and may be used.