Description: Cross-Site Scripting (XSS) in JavaServer Pages (JSP) is a security vulnerability that allows an attacker to inject malicious scripts into web pages viewed by other users. This vulnerability occurs when a web application fails to properly validate or escape input data, allowing JavaScript code to execute in the victim’s browser. XSS can be used to steal sensitive information, such as session cookies, user credentials, or to perform actions on behalf of the user without their consent. There are different types of XSS, including reflected, stored, and DOM-based, each with its own characteristics and exploitation methods. The relevance of this vulnerability lies in its ability to compromise the security of web applications and user trust, which can result in significant harm to both individuals and organizations. Preventing XSS involves implementing secure coding practices, such as input validation, using escaping libraries, and properly configuring Content Security Policies (CSP).
