---
id: "CVE-2026-91075"
kind: "vulnerability"
aliases: ["CVE-2026-91075"]
title: "Eupago Gateway WooCommerce plugin: forged webhooks can mark unpaid orders paid"
severity: "medium"
cvss: 5.3
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["eupago", "package", "payments", "woocommerce", "wordpress"]
not_affected_if: ["other-gateway", "other-version"]
published_at: "2026-11-03T09:17:13+00:00"
first_seen_at: "2026-11-03T09:19:51+00:00"
updated_at: "2026-11-03T09:20:26+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91075", "first_seen_at": "2026-11-03T09:19:51+00:00"}]
---

# Eupago Gateway WooCommerce plugin: forged webhooks can mark unpaid orders paid

The Eupago Gateway for WooCommerce WordPress plugin, versions 4.5.0 through 4.7.5, does not verify that payment-confirmation webhook requests are genuine in some configurations. An unauthenticated attacker can send a forged confirmation and get a pending order marked as paid without paying.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed version of the Eupago Gateway for WooCommerce plugin in the WordPress plugins list, or with `wp plugin get <plugin-slug> --field=version` if WP-CLI is available.
- Confirm whether the Eupago webhook is configured on your store and whether the plugin's webhook verification is enabled in its settings; the sources do not say which settings are affected.

## Fix

- Eupago Gateway for WooCommerce: versions after `4.7.5` (the sources do not name the fixed version).

## Timeline

- 2026-11-03T09:19:51+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-91075

## From the sources

The Eupago Gateway For Woocommerce WordPress plugin from 4.5.0 through 4.7.5 does not verify the authenticity of incoming payment-confirmation webhook requests in some configurations, allowing unauthenticated attackers to forge a payment confirmation and mark a pending order as paid without paying for it.

---

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