ABSTRACT
In this chapter, we present comprehensive study of one of the dangerous web application vulnerabilities, i.e. Cross-Site Scripting (XSS). This chapter focuses on what is XSS, what are the different flavors of XSS attack, how the attacker can exploit this vulnerability, what are the effects of the XSS attack, and lastly we shed some light on the defensive techniques developed by the researchers to defend against the XSS attack.
