Apache Tomcat Host Manager "name" Cross-Site Scripting - Advisories - Secunia
TomcatのHost Managerにクロスサイトスクリプティングの脆弱性が存在するそうです。
HostManagerを無効化しておく必要ありですね。
A vulnerability has been reported in Tomcat, which can be exploited by malicious people to conduct cross-site scripting attacks.
Input passed via the "name" parameter to host-manager/html/add is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a logged in user's browser session in context of an affected site.