WordPress NewStatPress plugin before 0.9.9 contains a cross-site scripting vulnerability in includes/nsp_search.php. The plugin allows remote authenticated users to inject arbitrary web script or HTML via the where1 parameter in the nsp_search page to wp-admin/admin.php.
View the template here CVE-2015-4063.yaml
References:
https://wordpress.org/plugins/newstatpress/changelog/