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CVE-2026-3208— Mercado Pago payments for WooCommerce <= 8.7.11 - Missing Authorization to Unauthenticated PIX Payment QR Code Image Disclosure

Quick assessment

Affected
mercadopago Mercado Pago payments for WooCommerce
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Mercado Pago payments for WooCommerce 8.7.11及之前版本存在安全漏洞，该漏洞源于mp_pix_image WooCommerce API端点缺少权限检查，可能导致未经身份验证

CVSS 5.3 · Medium EPSS 0.41% · P34

Affected Version Matrix 1

VendorProduct Version RangeStatus
mercadopago Mercado Pago payments for WooCommerce ≤ 8.7.11 affected
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I. Basic Information for CVE-2026-3208

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Mercado Pago payments for WooCommerce <= 8.7.11 - Missing Authorization to Unauthenticated PIX Payment QR Code Image Disclosure
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Mercado Pago payments for WooCommerce 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Mercado Pago payments for WooCommerce 8.7.11及之前版本存在安全漏洞，该漏洞源于mp_pix_image WooCommerce API端点缺少权限检查，可能导致未经身份验证
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
mercadopago Mercado Pago payments for WooCommerce 0 ~ 8.7.11 -

II. Public POCs for CVE-2026-3208

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III. Intelligence Information for CVE-2026-3208

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Vendor Advisories for CVE-2026-3208 (1)

IV. Related Vulnerabilities

Same product: Mercado Pago payments for WooCommerce
Same vendor: mercadopago
Same weakness: CWE-862

V. Comments for CVE-2026-3208

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