CVE-2026-42668: Omnisend Email Marketing For Woocommerce By Omnisend

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Unauthenticated Broken Authentication in Email Marketing for WooCommerce by Omnisend <= 1.18.0 versions.

Affected products

• Omnisend Email Marketing For Woocommerce By Omnisend: up to and including 1.18.0

Published 2026-06-15. Last modified 2026-06-17.