CVE-2026-14603: Unknown Wowoptin: Next-Gen Popup Maker

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

The WowOptin: Next-Gen Popup Maker WordPress plugin before 1.4.38 does not have proper authorization on a REST endpoint, allowing unauthenticated users to disable all of the site's opt-in forms and insert new template-based opt-in rows into the database.

Affected products

• Unknown Wowoptin: Next-Gen Popup Maker: before 1.4.38 (fixed in 1.4.38)

Published 2026-07-24. Last modified 2026-07-24.