Contest Gallery < 21.2.9 - Cross-Site Request Forgery

Description The Contest Gallery plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 21.2.8.4. This is due to missing or incorrect nonce validation in the prev10/prev10-admin/gallery/gallery.php file. This makes it possible for unauthenticated attackers to render galleries via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.