In any case, you should also make sure that the server will enforce format/size requirements itself, since an attacker could attempt to programmatically initiate the upload to add wrong formats intended to be misinterpreted by your server or files that are too large in order to cause a denial-of-service (DoS).
In any case, you should also make sure that the server will enforce format/size requirements itself, since an attacker could attempt to programmatically initiate the upload to add wrong formats intended to be misinterpreted by your server or files that are too large in order to cause a denial-of-service (DoS).
Yes.. another validation in backend.