Cross Site Scripting or XSS is a hacking technique that exists for few decades now and that keeps on developing.It is considered to be the most common vulnerability that has been in the OWASP top 10 for years.You will learn how to test web application for Cross Site Scripting manually by preforming code injection from the start, as well as performing various XSS attacks through different XSS examples (changing content, session hijacking, etc) by using various XSS payloads at the same time.