Is there an export available for extracting Contentbox posts and moving these into WordPress?
Why would you want to do that? 
We have importers, but not exporters. You could probably build your own using our export functionality that outputs all the content as JSON.
Thanks!
~Brad
ColdBox Platform Evangelist
Ortus Solutions, Corp
E-mail: brad@coldbox.org
ColdBox Platform: http://www.coldbox.org
Blog: http://www.codersrevolution.com