Struts 2 Security Plugin

HDIV 1.3 has just been released including Struts 2 support. HDIV
<http://www.hdiv.org/> is an open-source project that extends Struts
(Struts 1.x and Struts 2) behavior by adding web application level
Security functionalities (Integrity, Confidentiality of non editable
data and Generic Validations of the Editable Data), maintaining the API
and Struts specification.

HDIV 1.3 release has been added as a Struts 2 Plugin
<http://cwiki.apache.org/S2PLUGINS/hdiv-plugin.html> . You can download
an example (showcase
<http://sourceforge.net/project/showfiles.php?group_id=139104> ) to
understand how HDIV works.

In addition to that there is a quick introduction
<http://www.hdiv.org/docs/hdiv.ppt> about HDIV using OWASP top ten 2007
as reference.

You can get more details about HDIV in www.hdiv.org
<http://www.hdiv.org/>