File Upload Bypass

It is when the server validates the file that is uploaded by comparing its extension, this validation are used to stop the attacker from uploading various malicious file. There are a list of bypasses available which we can use to bypass this security filters.

Here are few amazing Resources where all those file Upload bypasses can be easily found:

1. PayloadAllTheThings File Upload Bypass.

2. Unrestricted File Upload~Owasp

3. Hacktricks ~ File Upload Methodology