PHP remote file inclusion vulnerability in index.php in GrapAgenda 0.11 and earlier, when register_globals is enabled, allows remote attackers to execute arbitrary PHP code via the page parameter.
https://www.exploit-db.com/exploits/2304
https://exchange.xforce.ibmcloud.com/vulnerabilities/28722
http://www.vupen.com/english/advisories/2006/3469
http://www.securityfocus.com/bid/19857
http://www.securityfocus.com/archive/1/445176/100/0/threaded
http://securitytracker.com/id?1016812