newsadmin.asp in Katy Whitton NewsCMSLite allows remote attackers to bypass authentication and gain administrative access by setting the loggedIn cookie to "xY1zZoPQ".
https://exchange.xforce.ibmcloud.com/vulnerabilities/26698
http://www.vupen.com/english/advisories/2006/1993
http://www.securityfocus.com/archive/1/500407/100/0/threaded
http://www.securityfocus.com/archive/1/435019/100/0/threaded
http://www.kapda.ir/advisory-332.html