Most bug bounty hunters chase flashy vulnerabilities — XSS, SSRF, RCE. But what if I told you that the most valuable exploits often begin with bugs that triage teams usually mark as “Low” or “Informational”?

This article is your deep dive into chaining — the technique of linking small, seemingly harmless bugs into high-impact exploitation chains that slip past automated scanners and impress even the strictest triagers.

Real-World Analogy

Imagine a heist where the front door is locked, but the back window is cracked open. Inside, each room has a locked door, but the keys are lying around carelessly. One key leads to the next until you’re in the vault.

That’s what chaining bugs is like.

Section 1: What Are “Low” Severity Bugs?

• Open redirects
• Verb tampering (GET → POST)
• Misconfigured CORS
• Email enumeration
• Reflected JSON error messages
• Version disclosure