# ✍️ Description Attacker able to upload any picture with CSRF attack. It does not matter at all that your application run in localhost or elsewhere, just it is enough to run on a browser and another low privilege user or attackers know the IP address or hostname of your application. In CSRF attacks it is necessary that a user logged into your application just going to a malicious website and after that only with a redirection attacker can upload any picture, this means only with visiting a site a picture will be uploaded. # 🕵️‍♂️ Proof of Concept 1.fisrt user already should be logged in In Firefox or safari. 2.Open the PoC.html and click on submit button ( Also it can be auto-submit) 3.A black picture will be uploaded after clicking on submit button on PoC.html file. // PoC.html ``` ``` Also for real attacks the submit button can be auto-submit. # 💥 Impact This vulnerability is capable of upload any picture. # Fix set a token with a length bigger that 16 characters in every requests body then attacker never can guess the url. Also you cat turn `Lax` to `Strict` in cookies. 📍 Location app.php#L1