# FunnelKit Payment Gateway for Stripe WooCommerce <= 1.14.0.4 - Unauthenticated Insecure Direct Object Reference to Sensitive Information Exposure via Order-Pay Page

- **ID:** WPSEC-2026-0842
- **Plugin:** FunnelKit Payment Gateway for Stripe WooCommerce (`funnelkit-stripe-woo-payment-gateway`), https://wordpress.org/plugins/funnelkit-stripe-woo-payment-gateway/
- **Affected versions:** all versions before 1.14.0.4.1
- **Fixed in:** 1.14.0.4.1 (Update to 1.14.0.4.1 or later.)
- **Severity:** Medium 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
- **Weakness:** CWE-639
- **Usage among sites WPSec scans:** plugin Low, affected versions Low (as of 2026-10-13)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/funnelkit-stripe-woo-payment-gateway
- **Fix released:** 2026-10-12
- **Published:** 2026-10-13
- **URL:** https://wpsec.com/vuln/WPSEC-2026-0842/

## Description

The FunnelKit Payment Gateway for Stripe WooCommerce plugin for WordPress is vulnerable to Insecure Direct Object Reference via the order-pay endpoint in all versions up to, and including, 1.14.0.4, due to the gateway loading the order from the order ID in the URL without validating the order key or that the current user owns the order. The order's billing details (name, email, phone and address) and Google Pay order data (currency, line items and total) are then printed into front-end script data. This makes it possible for unauthenticated attackers to step through sequential order IDs and harvest other customers' personal information and order details.

## References

- https://wpsec.com/vuln/WPSEC-2026-0842/
- https://plugins.svn.wordpress.org/funnelkit-stripe-woo-payment-gateway/tags/1.14.0.4.1/
- https://wordpress.org/plugins/funnelkit-stripe-woo-payment-gateway/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-0842/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.