Lessons:15Length:2.3 hours
Crs 14
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6.1 XSS

Cross site scripting (or XSS) is a common security vulnerability. It is said that 65% of websites are vulnerable to XSS, which is a scary number. XSS is often used to steal session IDs, but it can be used for all kinds of HTML or JavaScript-based attacks. In this lesson we create some examples of XSS and set up our line of defense to counter these attacks.