Hello all,
I'm working for a client that's using a proprietary Servlet/JSP-based framework that runs on Tomcat. They have their own custom JSP compiler and they're looking to move to a standard JSP compiler. One of the things their compiler supports is automatic escaping of XML in expressions. For example, ${foo} would be escaped from <body> -> <body>. JSP EL does not do this. It *doesn't* escape by default and instead requires you to wrap your expressions with <c:out/> if you want escaping.
I'd like to ask what developers think about adding a flag (similar to trimSpaces in web.xml) that allows users to change the escaping behavior from false to true?
I think this is a good option to have as it allows security-conscious organizations to paranoid and escape all content by default.
Thanks,
Matt
Related:
http://raibledesigns.com/rd/entry/java_web_frameworks_and_xss
