Web application users and web application vulnerabilities are increasing. Today web applications turning out to be tools of everyday use by many users with the growing popularity of the web. With this web application users are more prone to malicious attacks consequently the need of web security testing arises as well. As security testing helps to mitigate vulnerabilities in the web applications which is quite intricate process so requires the use of efficient security testing technique. Frequently occurring security vulnerabilities in web applications result from generic input validation problems.