CVE-2026-3208 Missing authorization in Mercado Pago payments for WooCommerce
Unauthenticated attackers can retrieve PIX payment QR code images for arbitrary orders, exposing sensitive merchant and transaction data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-3208?
CVE-2026-3208 is a medium-severity missing authorization vulnerability in mercadopago Mercado Pago payments for WooCommerce, published on 6 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Weakness: CWE-862
Which versions are affected by CVE-2026-3208?
How do I fix CVE-2026-3208?
No fix has been published for CVE-2026-3208 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-3208 being exploited?
There is no known exploitation of CVE-2026-3208 in the wild and no public exploit code.
Sources
Also known as GHSA-cfhj-895c-686j.