What is Cross Site Scripting (XSS)? | Types of XSS | How to Prevent XSS (2025)
In this video of Cyber Security Tutorial, I explain Cross Site Scripting (XSS) — one of the most dangerous client-side vulnerabilities that hackers use to inject malicious scripts into websites.

In this video you will learn:
What XSS is and why it’s dangerous
Types of XSS Attacks (Reflected, Stored, DOM-Based)
How hackers inject malicious JavaScript into vulnerable inputs
Real-world impact of XSS (session hijacking, cookies theft, redirection, popup injection)
How to Prevent XSS

IMPORTANT — Education & Ethics:
This video is only for educational and defensive security. Do NOT test XSS on websites you do not own or do not have written permission for. Unauthorized testing is illegal and unethical. Always follow responsible disclosure.

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