xssValidator is a Burp Suite intruder extension that automates the detection and validation of Cross-Site Scripting (XSS) vulnerabilities in web applications. The tool integrates with Burp Suite's intruder functionality to streamline the testing process for XSS flaws. It provides capabilities for creating custom XSS payloads tailored to specific testing scenarios and target applications. The extension includes automated payload generation features that help security testers create diverse XSS attack vectors. It validates potential XSS vulnerabilities by analyzing application responses and determining whether injected payloads successfully execute. xssValidator generates reports on identified vulnerabilities, providing documentation of XSS findings for security assessments. The tool is designed to reduce manual effort in XSS testing while maintaining accuracy in vulnerability identification.