Upload Type

Difficulty: 🌟🌟🌟

Description: Upload a file that has no .pdf or .zip extension.

Category: Improper Input Validation

Tags:

Solution:

Go to the complaint page via http://localhost:3000/#/complain Try a valid and go to Burp Suite to see the POST /file-upload request

Send it to Repeater and replace the content of the valid PDF file with plain text and hit Send

The challenge is solved