# FunnelKit Payment Gateway for Stripe WooCommerce <= 1.14.0.1 - Unauthenticated Insecure Direct Object Reference to Sensitive Information Exposure via Order-Pay Page

- **ID:** WPSEC-2026-0839
- **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 1.14.0.1.1
- **Fixed in:** 1.14.0.1.1 (Update to 1.14.0.1.1 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-2026-0839/

## Description

The FunnelKit Payment Gateway for Stripe WooCommerce plugin for WordPress is vulnerable to Insecure Direct Object Reference via the order-pay page in all versions up to, and including, 1.14.0.1. This is due to missing validation of the order key and order ownership when the plugin builds the order-pay billing details and Google Pay cart data from the user-controlled 'order-pay' order ID. This makes it possible for unauthenticated attackers to enumerate order IDs and obtain other customers' billing names, email addresses, postal addresses, phone numbers, order line items and totals, which are embedded in the localized script data of the order-pay page.

## References

- https://wpsec.com/vuln/WPSEC-2026-0839/
- https://plugins.svn.wordpress.org/funnelkit-stripe-woo-payment-gateway/tags/1.14.0.1.1/
- https://wordpress.org/plugins/funnelkit-stripe-woo-payment-gateway/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-0839/

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.