Freemarker and security

Chris <[email protected]>
Newsgroups gmane.comp.web.freemarker.user
Message-ID <[email protected]>
We're building an app where untrusted users will be able to create their 
own templates. This is a website where users will be able to create 
their own websites in a shared environment. The different sites will 
share a JVM.

What are the security risks?

I looked through the Freemarker template language and did not find much 
of concern, though I'm a bit leery of the ways that users might be able 
to invoke Java code.

Can anyone point to specific risks or holes we need to look out for?

Any advice on how to lock it down so users won't be able to do any 
damage outside the context of their own template?


------------------------------------------------------------------------------
This SF Dev2Dev email is sponsored by:

WikiLeaks The End of the Free Internet
http://p.sf.net/sfu/therealnews-com
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.