Cross-Site Scripting (XSS)
Cross-Site Scripting (XSS) is a security vulnerability found in web applications, allowing attackers to inject malicious client-side scripts into web pages viewed by other users. XSS exploits the trust a user has for a particular site, enabling attackers to steal cookies, session tokens, or other sensitive information from victims. Mitigation strategies include validating and sanitizing all user inputs, implementing Content Security Policy (CSP), and using secure programming practices to prevent script injection.