On the 06.12.2017 security researcher reported a XSS vulnerability affecting the design142121.rssing.com website via the Open Bug Bounty coordinated vulnerability disclosure program.
Vulnerability submitted via Open Bug Bounty| 6 December, 2017 07:01 GMT
Generic security notifications sent to website owner| 6 December, 2017 07:03 GMT
Notification sent to subscribers (without technical details)| 6 December, 2017 10:17 GMT
If you are the website owner or administrator please contact the researcher directly to get vulnerability details and proceed to coordinated disclosure.