CVE-2026-118166
MEDIUM
NVD
CVSS Score
4.8
Severity
MEDIUM
Published
Nov 06, 2026
Vendor
unknown
Description
The MC4WP: Mailchimp for WordPress WordPress plugin before 4.15.0 does not prevent request-derived values in its dynamic content tags from being processed as shortcodes when a form is embedded with its block, allowing unauthenticated visitors to execute arbitrary registered shortcodes with attacker-chosen attributes. This requires the site owner to have added a request-derived tag to the form content and to embed the form with the block rather than the classic shortcode.