By searching inside one of the Bitcoin platforms I found there a place to document accounts by sending documents such as ID or passport with Selfie ) I decided to upload a picture and send a request to Burp so that I know where to upload it And as I expected, he got my picture link within the same domain like this:- https://test.com/portal/api/uploads/241241451252/content I changed the last number which is the `id` of the uploaded image And I didn’t get anything