The advancement in internet technology has changed the daily activities of human life. The information available here is ample and is available with a single click. In present-day, most of service-oriented companies use web applications to improve services to their clients. With the increase in web users, web attacks are also increasing due to the vulnerabilities in applications. Cross-Site Scripting (XSS) is a computer security vulnerability found in web applications. Hackers, use this vulnerability in web applications to steal identity, credit card details, etc. According to the Internet Security Threat Report 2019(ISTR 2019), there is an increase in web attacks by 56 percent in 2018.