The isloggedin function in Php/login.inc.php in phpTrafficA 1.4.3 and earlier allows remote attackers to bypass authentication and obtain administrative access by setting the username cookie to "traffic." NOTE: some of these details are obtained from third party information.
https://exchange.xforce.ibmcloud.com/vulnerabilities/35290
http://www.securityfocus.com/bid/24823
http://www.securityfocus.com/archive/1/473041/100/0/threaded
http://securityreason.com/securityalert/2870