Class Pollution Vulnerability in Python - A New Type of Security Vulnerability

[Pedram]

The challenge shows a variant of JavaScript’s Prototype Pollution in Python. Specially crafted JSON input can tamper with existing classes and modify their behaviour.

I have implemented this vulnerability the popular FastAPI framework.

Class Pollution Vulnerability in Python - A New Type of Security Vulnerability

Link to the challenge: Class Pollution.py

Give it a try and let’s us know what you think.