CVE-2026-95589 in Deposits and Partial Payments for WooCommerce Plugin
Summary
by MITRE • 10/09/2026
Missing Authorization vulnerability in Magepeople inc. Deposits and Partial Payments for WooCommerce advanced-partial-payment-or-deposit-for-woocommerce allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Deposits and Partial Payments for WooCommerce: from n/a through 4.0.1.
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Analysis
by VulDB Data Team • 10/09/2026
The vulnerability identified in the Magepeople Inc. plugin, specifically within the Deposits and Partial Payments for WooCommerce extension versions up to 4.0.1, represents a critical failure in access control mechanisms that governs how users interact with financial transaction data. This flaw is categorized under CWE-285, which describes Improper Authorization, indicating that the application fails to properly verify whether an authenticated user has the necessary permissions to perform specific actions or view sensitive information related to deposits and partial payments. In a typical e-commerce environment utilizing this plugin, various roles such as administrators, shop managers, customers, and potentially unauthenticated visitors interact with different layers of the system. The vulnerability arises when these security levels are incorrectly configured or not enforced by the backend logic, allowing an attacker to bypass intended restrictions.
From a technical perspective, the core issue lies in the absence of robust server-side validation for authorization checks on endpoints handling deposit-related operations. While frontend interfaces may restrict certain buttons or options based on user roles, the underlying API calls or form submissions likely do not rigorously verify that the requesting user is authorized to access or modify specific deposit records. This allows an attacker who has obtained valid credentials for a lower-privileged account, such as a standard customer role, to manipulate HTTP requests and perform actions reserved for higher-privilege roles like administrators. For instance, an attacker might be able to view sensitive financial details of other users, alter the status of deposits without proper approval workflows, or even modify payment configurations that affect how funds are collected and processed by the merchant.
The operational impact of this vulnerability is significant, particularly regarding data confidentiality and integrity within the e-commerce platform. Unauthorized access to deposit information can lead to a breach of customer privacy, exposing financial details such as order totals, partial payments made, and remaining balances. Furthermore, if an attacker can manipulate these records, it could result in financial loss for both the merchant and customers through fraudulent adjustments or misallocation of funds. The integrity of the transaction history is compromised, making auditing and reconciliation difficult for shop administrators. This type of vulnerability undermines trust in the payment infrastructure and exposes the business to potential regulatory penalties if customer data protection standards are not met due to inadequate access controls.
In terms of industry frameworks, this flaw aligns with MITRE ATT&CK technique T1078, Valid Accounts, where attackers leverage legitimate credentials to gain unauthorized access by exploiting poor authorization logic rather than stealing passwords or breaking encryption. It also relates to CWE-639, Authorization Bypass Through User-Controlled Key, if the vulnerability allows manipulation of identifiers associated with deposit records to escalate privileges or access unintended resources. The lack of proper role-based access control enforcement is a common pitfall in WordPress plugins that handle sensitive data, often resulting from developers assuming frontend restrictions are sufficient for security rather than implementing strict server-side checks on every request involving protected resources.
To mitigate this vulnerability, immediate action should be taken by updating the Deposits and Partial Payments for WooCommerce plugin to version 4.0.2 or later, where these authorization flaws have been addressed by the vendor. For organizations unable to update immediately due to compatibility constraints with other plugins or custom code modifications, implementing a Web Application Firewall (WAF) can provide an additional layer of defense by blocking suspicious request patterns that attempt to access restricted endpoints without proper permissions. Additionally, developers should conduct a thorough audit of all plugin functions handling deposit data to ensure that every operation includes rigorous server-side authorization checks verifying the user's role against the required permission level before executing any logic or returning sensitive information. Regular security testing and code reviews focusing on access control mechanisms are essential to prevent similar issues in future updates or custom integrations within the WooCommerce ecosystem.