Web Security: Common Vulnerabilities And Their Mitigation - Types of XSS

The video tutorial explains cross-site scripting (XSS) attacks, categorizing them into three types: persistent, reflected, and DOM-based. Persistent XSS involves scripts stored in a website's database, while reflected XSS occurs when a script is reflected off a web server. DOM-based XSS involves client-side scripts. The tutorial emphasizes the importance of validating input on both server and client sides to prevent these attacks.

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