PHP remote file inclusion vulnerability in index.php in Christian Schneider CS-Gallery 2.0 and earlier allows remote attackers to execute arbitrary PHP code via a URL in the album parameter during a securealbum todo action.
https://www.exploit-db.com/exploits/3372
https://exchange.xforce.ibmcloud.com/vulnerabilities/32674
http://www.vupen.com/english/advisories/2007/0734