# FunnelKit Payment Gateway for Stripe WooCommerce <= 1.14.0.3 - Unauthenticated Insecure Direct Object Reference to Sensitive Information Exposure via Order-Pay Page

- **ID:** WPSEC-2026-0841
- **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 1.14.0.3.1
- **Fixed in:** 1.14.0.3.1 (Update to 1.14.0.3.1 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-2026-0841/

## Description

The FunnelKit Payment Gateway for Stripe WooCommerce plugin for WordPress is vulnerable to Insecure Direct Object Reference via the order-pay page's localized script data in all versions up to, and including, 1.14.0.3, due to missing validation of the order key and order ownership when loading the order referenced by the 'order-pay' query variable. The plugin printed that order's billing details (name, email, phone, address) into the page's JavaScript data, and the Google Pay gateway added its line items and totals. This makes it possible for unauthenticated attackers to enumerate sequential order IDs and obtain other customers' personal information and order details.

## References

- https://wpsec.com/vuln/WPSEC-2026-0841/
- https://plugins.svn.wordpress.org/funnelkit-stripe-woo-payment-gateway/tags/1.14.0.3.1/
- https://wordpress.org/plugins/funnelkit-stripe-woo-payment-gateway/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-0841/

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.