Simpliciti Locked Browser does not properly limit a user's actions to ones within the intended Internet Explorer environment, which allows local users to perform unauthorized actions by visiting a web site that executes a JavaScript window.blur loop to remove focus from the browser window, then pressing CTRL-SHIFT-ESC to invoke the Task Manager.
https://exchange.xforce.ibmcloud.com/vulnerabilities/28224
http://www.securityfocus.com/bid/19304
http://www.securityfocus.com/archive/1/444026/100/100/threaded
http://www.securityfocus.com/archive/1/442058/100/100/threaded