DOM Vulnerabilities - DOM XSS Using Web Messages
We'll be solving the Portswigger lab with the title "DOM XSS Using Web Messages". Learn about web messages and how they can be exploited to generate a cross site scripting attack.
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00:00 Intro
00:18 What is a Web Message?
00:53 Experimenting with Web Messages
03:06 Exploring the Lab
05:07 Injecting HTML Payload
06:02 Mitigation Strategies
08:16 Writing the Exploit
11:07 Understanding TargetOrigin
15:22 Solving the Lab and Summary