Analysis of Security Vulnerabilities for Web based Application

In this paper we present various security vulnerabilities in web applications and provide the analysis for counter attacks from these security vulnerabilities. SQL injection attack[1] is a prevalent method for attackers to have an unauthorized access to any type of web applications and culminates in extracting important and sensitive information from the web application. Cross-site scripting (XSS)[6] is another form attack in which the attacker makes changes in the input to the application to access or modify the user input data and executes the unauthorized code. This paper presents and provides analysis for different SQL injection prevention techniques, which are used for security of data in a web application.