Cross-site scripting (XSS) vulnerability in wp-db-backup.php in WordPress 2.0.11 and earlier, and possibly 2.1.x through 2.3.x, allows remote attackers to inject arbitrary web script or HTML via the backup parameter in a wp-db-backup.php action to wp-admin/edit.php.
http://www.securityfocus.com/archive/1/485786/100/0/threaded
http://www.debian.org/security/2008/dsa-1502