Cyber Risks · PortSwigger Research

CSP Auditor

Summary: CSP Auditor is a Burp Suite extension by Philippe Arteau of GoSecure, version 2.0a, last updated 11 February 2022, that gives a readable view of CSP headers for responses. It also includes passive scan rules to detect weak CSP configurations, and PortSwigger notes it is written by a third party and makes no warranty about its quality or usefulness.

Why it matters: A weak Content Security Policy is the difference between an injected script running in a user's browser and being blocked, and this extension's passive scan rules surface those weak configurations during testing. The tool is third-party code last updated in February 2022, so a security leader should weigh its age and lack of vendor warranty before relying on it in an assessment program.

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Topics
Vulnerabilities & Patching
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