The encapsulation script mechanism in Webwasher CSM Appliance Suite 5.x uses case-sensitive detection of malicious tokens, which allows attackers to bypass script detection by using tokens that can be upper or lower case. NOTE: the vendor has stated that this problem could not be reproduced, and has asked the researcher for more information, without a response as of 20060103
https://exchange.xforce.ibmcloud.com/vulnerabilities/23884
http://www.securityfocus.com/bid/16047
http://www.securityfocus.com/archive/1/420678/100/0/threaded
http://www.securityfocus.com/archive/1/420158/100/0/threaded
http://www.securityfocus.com/archive/1/420106/100/0/threaded