openSIS through 7.4 has Incorrect Access Control.
https://github.com/OS4ED/openSIS-Responsive-Design/commits/master
http://packetstormsecurity.com/files/158331/openSIS-7.4-Unauthenticated-PHP-Code-Execution.html
http://packetstormsecurity.com/files/158255/openSIS-7.4-Incorrect-Access-Control.html