CyberRota Analysis
AI-GeneratedThe GutenKit Blocks plugin for WordPress is vulnerable due to a lack of capability checks on specific REST API endpoints, allowing unauthorized access to sensitive Mailchimp configuration data. This vulnerability enables unauthenticated attackers to retrieve private information, including audience and subscriber details, from any affected site. WordPress site administrators using the GutenKit Mailchimp integration should prioritize patching this issue to protect their data from potential exploitation.
Original NVD Description
The GutenKit Blocks plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the /wp-json/gutenkit/v1/mailchimp/get/lists and /wp-json/gutenkit/v1/mailchimp/get/interests REST API endpoints in versions up to, and including, 2.4.12. Both endpoints are registered with permission_callback => '__return_true', and their callbacks read the site's stored Mailchimp API key from the gutenkit_settings_list option and proxy Mailchimp audience/list, merge-field, interest-category, interest-name, and subscriber-count metadata back to the caller with no login, nonce, or capability check. This makes it possible for unauthenticated attackers to retrieve private Mailchimp audience configuration information from any site that has configured the GutenKit Mailchimp integration.