CVE-2026-57816: Funnelkit Funnel Builder By Funnelkit

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

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in FunnelKit Funnel Builder by FunnelKit funnel-builder allows Reflected XSS.This issue affects Funnel Builder by FunnelKit: from n/a through <= 3.15.0.8.

Affected products

• Funnelkit Funnel Builder By Funnelkit: up to and including 3.15.0.8

Published 2026-07-13. Last modified 2026-07-13.