Cross-site scripting (XSS) vulnerability in Servlet Engine / Web Container in IBM WebSphere Application Server (WAS) 5.1.1.4 through 5.1.1.16 allows remote attackers to inject arbitrary web script or HTML via the Expect HTTP header. NOTE: this might be the same issue as CVE-2006-3918, but there are insufficient details to be sure.
http://www.vupen.com/english/advisories/2007/3680
http://www.securitytracker.com/id?1018963
http://www.securityfocus.com/bid/26457
http://www-1.ibm.com/support/docview.wss?uid=swg24017314
http://www-1.ibm.com/support/docview.wss?uid=swg1PK51068