CVE-2026-3208

Mercado Pago payments for WooCommerce <= 8.7.11 - Missing Authorization to Unauthenticated PIX Payment QR Code Image Disclosure

mediumMissing Authorization

5.3

CVSS Score

5.3

CVSS Score

medium

Severity

8.7.12

Patched in

Time to patch

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.

CVSS Vector Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Low

Confidentiality

None

Integrity

None

Availability

Technical Details

Affected versions<=8.7.11

PublishedMay 5, 2026

Last updatedMay 6, 2026

Affected pluginwoocommerce-mercadopago

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/986e0252-b94d-4ac8-9083-0218fa8a651e?source=api-prod

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