CVE-2026-27536: Pluginops Mailchimp Subscribe Forms

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Unauthenticated Cross Site Scripting (XSS) in MailChimp Subscribe Forms <= 4.3.3 versions.

Affected products

• Pluginops Mailchimp Subscribe Forms: up to and including 4.3.3

Published 2026-08-13. Last modified 2026-08-14.