Cross-site request forgery (CSRF) vulnerability in deans_permalinks_migration.php in the Dean's Permalinks Migration 1.0 plugin for WordPress allows remote attackers to modify the oldstructure (aka dean_pm_config[oldstructure]) configuration setting as administrators via the old_struct parameter in a deans_permalinks_migration.php action to wp-admin/options-general.php, as demonstrated by placing an XSS sequence in this setting.
https://exchange.xforce.ibmcloud.com/vulnerabilities/39845
http://www.vupen.com/english/advisories/2008/0281
http://www.securityfocus.com/archive/1/486840/100/0/threaded
http://securityreason.com/securityalert/3595