According to the annual tradition I publish a little bit information about LockHeed Martin site security :) It’s just an XSS as the result of several additional web security problems.
XSS exists when you send POST request with an empty body request due to improper Java exception handling (javax.jcr.AccessDeniedException) and incorrect handling of HTTP request methods (HTTP Verb Tampering). For exploitation of the vulnerability you must to spoof the Referer header.
Info:
c3ret 