CSS:the bomb inside your inbox | PortSwigger ResearchWeb Page - portswigger.net
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CSS:the bomb inside your inbox | PortSwigger Research

Gareth Heyes - gareth.heyes@portswigger.net - @garethheyes It's quite common for webmail clients to render untrusted CSS in a trusted UI. They attempt to make this safe using CSS sanitization. In this

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