CVE-2026-12978: Unknown Funnelkit

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

The FunnelKit WordPress plugin before 3.15.0.6 does not escape a user-supplied parameter before reflecting it into the HTML response of one of its page-builder AJAX actions, allowing unauthenticated attackers to perform Reflected Cross-Site Scripting against logged-in users who open a crafted page. The affected action is only registered when the Divi /builder is active.

Affected products

• Unknown Funnelkit: before 3.15.0.6 (fixed in 3.15.0.6)

Published 2026-07-16. Last modified 2026-07-16.