CVE-2026-0939 MEDIUM

CVE-2026-0939: Rede Itaú for WooCommerce — Payment PIX, Credit Card and Debit <= 5.1.2 - Unauthenticated Order Status Manipulation

Vendor Linknacional
Product Rede Itaú for WooCommerce — Payment PIX, Credit Card and Debit
Weakness CWE-345
Published January 16, 2026
Last update April 8, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The Rede Itaú for WooCommerce plugin for WordPress is vulnerable to order status manipulation due to insufficient verification of data authenticity in all versions up to, and including, 5.1.2. This is due to the plugin failing to verify the authenticity of payment callbacks. This makes it possible for unauthenticated attackers to manipulate WooCommerce order statuses, either marking unpaid orders as paid, or failed.

Explanation of Vulnerability in Simple Terms

02Summary

The Rede Itaú for WooCommerce payment plugin contains an integrity vulnerability affecting versions up to 5.1.2. An attacker on the network can modify data in transit without authentication or user interaction. The vulnerability does not expose sensitive information or disrupt service availability, but allows tampering with payment-related communications or transaction details.

What an attacker can do

03Attacker Capabilities

Modify payment data or transaction information in transit without authentication.

Potential impact on your site

04Site Impact

Payment transactions or order data could be altered by an attacker, potentially affecting order integrity and customer trust.

Conditions required to exploit

05Prerequisites

Network access to the site; no authentication or user interaction required.

Key dates

06Disclosure timeline

January 16, 2026 CVE published
April 8, 2026 Record updated

Related vulnerabilities

08Related CVE