Multiple cross-site scripting (XSS) vulnerabilities in the Thank You Counter Button plugin 1.8.7 for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) thanks_caption, (2) thanks_caption_style, or (3) thanks_style parameter to wp-admin/options.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.