HACKR.GG
00 — Overview

Mass Assignment — Fields the App Never Meant to Expose

Add extra fields to a registration or update request that the frontend never sends. If the server blindly maps your JSON to its database object — you just made yourself admin.

Beginner·35 min·5 tasks
// By the end of this module
Apply mass assignment techniques with a proxy against a live API
Discover hidden fields by diffing responses with and without extra params
Escalate account privileges in a real target application