Photo Gallery by Ays <= 5.2.6 is vulnerable to Cross Site Request Forgery (CSRF) vulnerability

The Photo Gallery by Ays plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 5.2.6. This is due to missing nonce validation in the /admin/partials/gallery-photo-gallery-admin-display.php file. This makes it possible for unauthenticated attackers to duplicate galleries via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.