HACKR.GG
00 — Overview

Mass Assignment

Learn how developers accidentally expose internal object fields through JSON body assignment — and how attackers use it to escalate privileges and manipulate data.

Intermediate·35 min·5 tasks
// By the end of this module
Understand how mass assignment frameworks blindly bind request parameters
Identify unexposed but writable fields in API request bodies
Escalate privileges by injecting role or admin fields into POST requests
Find mass assignment by comparing API docs against actual request handling