EUVD-2026-83559

The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 'data' Dynamic Content Tag in all versions up to, and including, 4.14.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to...

CVE-2026-87917: Improper Neutralization of Input During Web Page Generation

The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 'data' Dynamic Content Tag in all versions up to, and including, 4.14.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to...

PT-2026-95794

Name of the Vulnerable Software and Affected Versions MC4WP: Mailchimp for WordPress versions prior to 4.14.1 Description Insufficient input sanitization and output escaping in the data Dynamic Content Tag allow unauthenticated attackers to perform Reflected Cross-Site Scripting. This occurs when...