CVE-2026-23693

Name of the Vulnerable Software and Affected Versions ElementsKit Lite WordPress plugin versions prior to 3.7.9

Description The ElementsKit Lite WordPress plugin versions prior to 3.7.9 exposes the REST endpoint /wp-json/elementskit/v1/widget/mailchimp/subscribe without authentication. The endpoint accepts client-supplied Mailchimp API credentials and insufficiently validates the list parameter when constructing upstream Mailchimp API requests. An unauthenticated attacker can abuse the endpoint as an open proxy to Mailchimp, potentially triggering unauthorized API calls, manipulating subscription data, exhausting API quotas, or causing resource consumption on the affected WordPress site.

Recommendations Update ElementsKit Lite WordPress plugin to version 3.7.9 or later.