medium.com/tag/bug-bounty· Sep 27, 2026· by T4nv1

$6,000 for a Dangling DNS Record: Taking Over a Subdomain to Steal Session Cookies

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This bug didn’t involve a single request to the target’s actual application. The entire vulnerability lived in a DNS record someone forgot… Continue reading on Medium »
🎯 Vulnerability: Web Security Vulnerability
💡 Defense Fix: Implement strict input validation, contextual output encoding, and enforce least-privilege authorization controls.
#penetration-testing#bug-bounty#bug-bounty-tips#cybersecurity#hacking