What is XSS? Cross-site scripting (XSS) is a type of computer security vulnerability typically found in Web applications. XSS enables attackers to inject client-side script into Web pages viewed by other users. A cross-site scripting vulnerability may be used by attackers to bypass access controls such as the same origin policy. Cross-site scripting carried out on websites accounted for roughly 84% of all security vulnerabilities documented by Symantec as of 2007.Their effect may range from a petty nuisance to a significant security risk, depending on the sensitivity of the data handled by the vulnerable site and the nature of any security mitigation implemented by the site’s owner. (source:wiki). Here is the link of XSS-https://www.facebook.com/r.php?locale=en_us&possible_fb_user=+display=&email=HACKED%20BY%20MAURITANIA%20ATTACKER This video has been uploaded by the hacker showing the XSS vulnerability in the Facebook Don’t be a silent user let us know what do you think about it in comments below 🙂