What is XSS

Cross-site scripting (XSS) is a type of computer security vulnerability typically found in web applications which allow malicious web users to inject HTML or client-side script into the web pages viewed by other users. An exploited cross-site scripting vulnerability can be used by attackers to bypass access controls such as the same origin policy. Recently, vulnerabilities of this kind have been exploited to craft powerful phishing attacks and browser exploits.

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