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Abusing Chrome's XSS auditor to steal tokens

portswigger.net | research | #browser-security | #chrome | #side-channel | #token-theft | #xss-auditor
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Summary

Gareth Heyes abuses Chrome's XSS Auditor block mode as a side-channel oracle, brute-forcing values such as user IDs embedded in inline scripts and stealing tokens. Includes working PoC code.
Published
Collected

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