Vulnerability · Published May 6, 2026 · Assigned by Wordfence
CVE-2026-3208Mercado Pago payments for WooCommerce <= 8.7.11 - Missing Authorization to Unauthenticated PIX Payment QR Code Image Disclosure
Medium 5.3
In plain English
A medium-severity missing authorization in Mercado Pago payments for WooCommerce from mercadopago. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).
Official description
The Mercado Pago payments for WooCommerce plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the 'mp_pix_image' WooCommerce API endpoint in all versions up to, and including, 8.7.11. This makes it possible for unauthenticated attackers to retrieve PIX payment QR code images for arbitrary orders. PIX QR codes contain sensitive merchant information including PIX keys (which may be CPF/CNPJ personal identifiers), transaction amounts, merchant name and city, and MercadoPago transaction references.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| mercadopago | Mercado Pago payments for WooCommerce | 0 – through 8.7.11 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/986e0252-b94d-4ac8-9083-0218fa8a651e?source=cve
- https://plugins.trac.wordpress.org/browser/woocommerce-mercadopago/tags/8.7.10/src/Gateways/PixGateway.php#L358
- https://plugins.trac.wordpress.org/browser/woocommerce-mercadopago/tags/8.7.10/src/Gateways/PixGateway.php#L92
- https://plugins.trac.wordpress.org/changeset?old_path=%2Fwoocommerce-mercadopago/tags/8.7.11&new_path=%2Fwoocommerce-mercadopago/tags/8.7.12