What is Cross Site Scripting (XSS)? Technology Community › Category: Web Security › What is Cross Site Scripting (XSS)? 0 Vote Up Vote Down VietMX Staff asked 4 years ago By using Cross Site Scripting (XSS) technique, users executed malicious scripts (also called payloads) unintentionally by clicking on untrusted links and hence, these scripts pass cookies information to attackers.