Cross-site scripting (XSS) vulnerability in the Unconfirmed plugin before 1.2.5 for WordPress allows remote attackers to inject arbitrary web script or HTML via the s parameter in the unconfirmed page to wp-admin/network/users.php.
Improper Neutralization of Input During Web Page Generation The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.