pentester.land· Dec 15, 2021· by Alan Monie (@AlanMonie)Gumtree – leaking your data and not really listeningOpen Original Article ↗📋 Copy Report☆ Save BookmarkTarget Program: Gumtree🎯 Vulnerability: Insecure Direct Object Reference (IDOR)💡 Defense Fix: Enforce object-level access control checks (ABAC/RBAC) on the server side for every API request.#IDOR