securitybackendapi
6 min readIDOR: The Vulnerability That Lets Anyone Read Your Private Files 🔓👀
You built a file download endpoint, added authentication, and shipped it. Congrats — you still got hacked. IDOR (Insecure Direct Object Reference) is the embarrassingly simple bug that's #1 in bug bounty reports and #1 in developer blind spots.
Mar 27, 2026