Cyber Risks · PortSwigger Research

XSS Cheatsheet

Summary: PortSwigger lists a Burp extension, version 1.0.1 by Kai Mannion, that incorporates the company's cross-site scripting cheat sheet into Burp Suite, with payload data updated via GitHub when the extension loads and persisted globally if GitHub is unavailable. The listing, last updated 17 October 2023, rates its overall system impact as low and notes that extensions are written by third-party Burp users, with PortSwigger making no warranty about their quality or usefulness.

What's compelling: The payload data refreshes from GitHub at load time, so the extension's content depends on an external source, and PortSwigger explicitly disclaims warranty on third-party extensions - a supply-chain consideration before installing it into a testing workflow.

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Topics
Vulnerabilities & Patching
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