The Essential Addons for Elementor plugin for WordPress has a security vulnerability in versions up to and including 5.8.1. If you have a premium version of the plugin with the MailChimp block enabled on a page, unauthenticated attackers can access your MailChimp API key. This means someone could get your API key without you knowing. We recommend resetting your Mailchimp API key if you are running a vulnerable version of this plugin.