Cyber Risks · PortSwigger Research

Collaborator Everywhere

Summary: A Burp Suite extension called Collaborator Everywhere inserts Burp Collaborator payloads into all HTTP headers and URL parameters of in-scope traffic during active testing, aimed at uncovering SSRF and blind RCE. Version 2.0.3, authored by Andreas Brombach of Compass Security and James Kettle, is an improved version of Kettle's original Collaborator Everywhere and was last updated 29 August 2025.

What's compelling: The tool exists because out-of-band vulnerabilities like SSRF and blind RCE hide in entry points that manual injection would miss or take too long to cover, so testing every header and parameter becomes the practical baseline.

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Topics
Vulnerabilities & Patching
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