Write-up: Authentication bypass via encryption oracle @ PortSwigger Academy

This write-up for the lab Authentication bypass via encryption oracle is part of my walk-through series for PortSwigger’s Web Security Academy.

Learning path: Server-side topics → Business logic vulnerabilities

Lab: Authentication bypass via encryption oracle | Web Security Academy

Python script: script.py

Lab description

Steps

As usual, the first step is to analyze the functionality of the lab application. In this lab, it is a blog website.

Posting a comment

One part of this analysis is to post …

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