source: https://www.securityfocus.com/bid/25277/info

Openads (formerly known as phpAdsNew) is prone to a remote file-include vulnerability because it fails to sufficiently sanitize user-supplied data.

Exploiting this issue may allow an attacker to compromise the application and the underlying system; other attacks are also possible.

Openads 2.0.11 and prior versions are vulnerable. 

http://www.example.com/libraries/lib-remotehost.inc.php?phpAds_geoPlugin=EviL ShEll