The Stockists Manager for Woocommerce plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.0.2.1. This is due to missing nonce validation on the stockist_settings_main() function. This makes it possible for unauthenticated attackers to modify the plugin's settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
https://www.wordfence.com/vulnerability-advisories/#CVE-2022-2518
https://wordpress.org/plugins/stockists-manager/
https://plugins.trac.wordpress.org/browser/stockists-manager/trunk/stockist_settings.php