Public WebSummit bug reports.

Team Bounty Title
WebSummit - found a vulnerability in your website
WebSummit $20 Subdomain Takeover at http://gameday.websummit.net
WebSummit - Full Sub Domain Takeover at s3.websummit.net
WebSummit - WebSummit - Open Redirect
WebSummit $40 Subdomain take over signup.websummit
WebSummit - Reflected xss on websummit.net
WebSummit - Time Based SQL injection in url parameter