In this chapter, we discussed in detail several types of XSS vulnerabilities. We also covered various exploits and attack strategies that may become quite handy when performing Web application security audits.

It is important to understand that XSS is a broad subject that directly or indirectly affects every theology that interacts with it. The Web is tightly integrated. If attackers find a vulnerability in one of the components, the entire system is subjected to an attack reassembling a domino effect.

Although there are ways to prevent the most obvious XSS issues from occurring, it is impossible to protect your Web assets completely. Therefore, Webmasters and developers need to always be up-to-date with the latest vulnerabilities and attack strategies.