# FunnelKit Payment Gateway for Stripe WooCommerce <= 1.14.0.5 - Unauthenticated Insecure Direct Object Reference to Sensitive Information Exposure via Order Pay Page

- **ID:** WPSEC-2026-0843
- **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 1.14.0.5.1
- **Fixed in:** 1.14.0.5.1 (Update to 1.14.0.5.1 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-2026-0843/

## 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, 1.14.0.5. This is due to the plugin loading the order straight from the order ID in the order-pay URL, without checking the order key or that the order belongs to the current user, and then printing that order's billing details and Google Pay order data into the page's localized script data. This makes it possible for unauthenticated attackers to step through sequential order IDs and read customers' billing names, email addresses, phone numbers and addresses, along with order totals and line items, for any order.

## References

- https://wpsec.com/vuln/WPSEC-2026-0843/
- https://plugins.svn.wordpress.org/funnelkit-stripe-woo-payment-gateway/tags/1.14.0.5.1/
- https://wordpress.org/plugins/funnelkit-stripe-woo-payment-gateway/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-0843/

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.