Cross-site scripting (XSS) vulnerability in wp-admin/edit-post-rows.php in WordPress 2.3 allows remote attackers to inject arbitrary web script or HTML via the posts_columns array parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/38166
http://www.waraxe.us/advisory-59.html
http://www.vupen.com/english/advisories/2007/3640
http://www.securityfocus.com/bid/26228
http://www.securityfocus.com/archive/1/482905/100/0/threaded
http://wordpress.org/development/2007/10/wordpress-231/