Cross-site scripting(XSS) is a type of computer security vulnerability tipically found in Web application. XSS enables attackers to inject client-side scripts into Web pages viewed by other users. Attackers can modify elements of pages by editing document object with JS script. This rule detects XSS injection vulnerability with JS script in http request. This rule supports to defend the A3: Injection of OWASP Top 10 - 2021. Other reference:None