offenburg.de XSS vulnerability

Vulnerable URL: https://www.offenburg.de/html/misc/searchinterface.html?searchterm=test%22%3E%3Cimg+src%3Dx+onerror%3Dalert%28%27OPENBUGBOUNTY%27%29%3E&show-amount-results;=15 Details: Description| Value ---|--- Patched:| Yes, at 16.01.2018 Latest check for patch:| 16.01.2018 09:44 GMT...