IDORs are often recommended as the easy vulnerability class, perfect for beginners. "Just change the ID in the URL parameter" they say. But are they really that simple? There's only one way to find out – do a comprehensive case study. I analyzed 187 public bug bounty IDOR reports to understand how hunters actually make money with this bug class. This study reveals where to look for IDORs, what impact gets rewarded, and the most common placement for payloads (spoiler: it's not URL parameters).
You'll discover the most common identifier types, learn techniques for predicting identifiers, and understand real-world protection bypasses. The study includes a parameter wordlist and full database of all 187 reports for your research. If you think IDORs are just about changing numbers in URLs, this data-driven analysis will show you what successful hunters actually do differently.
How to make money with IDORs? IDOR case study
