Mercado Pago permits unauthenticated insecure direct object reference
Mercado Pago payments for WooCommerce 8.9.0 and earlier exposes an object-level operation without adequately verifying that the unauthenticated requester is authorized for the referenced object.
- Component
- Mercado Pago payments for WooCommerce
- Plugin slug
woocommerce-mercadopago- Affected
- n/a through 8.9.0
- Safe version
8.9.1- Published
- Aug 06, 2026
This CVE was published Aug 06, 2026 and is one of 4 known issues for this plugin.
Update, patch or deactivate.
Update Mercado Pago payments for WooCommerce to 8.9.1 or later.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
Unauthenticated Insecure Direct Object References (IDOR) in Mercado Pago payments for WooCommerce <= 8.9.0 versions.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N