pentester.land· Jul 2, 2021· by Philippe Harewood (@phwd)💰 Bounty: 3,750Bulletin.com email address leakOpen Original Article ↗📋 Copy Report☆ Save BookmarkTarget Program: Meta / Facebook🎯 Vulnerability: Web Security Vulnerability💡 Defense Fix: Implement strict input validation, contextual output encoding, and enforce least-privilege authorization controls.#Information disclosure#GraphQL