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
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