Topcoder: Cross Site Scripting via CVE-2018-5230 on https://apps.topcoder.com

Hi, I found reflected xss on https://apps.topcoder.com via error message.. Payload : %3CIFRAME%20SRC%3D%22javascript%3Aalert%28%27XSS%27%29%22%3E.vm Vulnerable link : https://apps.topcoder.com/wiki/labels/%3CIFRAME%20SRC%3D%22javascript%3Aalert'XSS'%22%3E.vm Step to reproduce : Create an account...