SQL injection vulnerability in wp-admin/admin-ajax.php in WordPress before 2.2 allows remote attackers to execute arbitrary SQL commands via the cookie parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/34399
http://www.waraxe.us/advisory-50.html
http://www.vupen.com/english/advisories/2007/1889
http://www.securityfocus.com/archive/1/469258/100/0/threaded
http://www.exploit-db.com/exploits/3960
http://www.debian.org/security/2008/dsa-1502
http://secunia.com/advisories/29014