A Command injection vulnerability in RaspAP 2.8.0 thru 2.8.7 allows unauthenticated attackers to execute arbitrary commands via the cfg_id parameter in /ajax/openvpn/activate_ovpncfg.php and /ajax/openvpn/del_ovpncfg.php.
https://medium.com/%40ismael0x00/multiple-vulnerabilities-in-raspap-3c35e78809f2
https://github.com/RaspAP/raspap-webgui/blob/master/ajax/openvpn/activate_ovpncfg.php
http://packetstormsecurity.com/files/174190/RaspAP-2.8.7-Unauthenticated-Command-Injection.html