CVE-2025-15400 in Pix Para Woocommerce Plugin
Summary
by MITRE • 02/11/2026
The Pix para Woocommerce WordPress plugin through 2.13.3 allows any authenticated user to trigger AJAX actions that reset payment gateway configuration options without capability or nonce checks. This permits any authenticated users, such as subscribers to clear API credentials and webhook status, causing persistent disruption of OpenPix payment functionality.
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Analysis
by VulDB Data Team • 02/12/2026
The Pix para Woocommerce WordPress plugin version 2.13.3 contains a critical authorization vulnerability that allows any authenticated user to manipulate payment gateway configurations through unauthenticated AJAX endpoints. This vulnerability stems from the absence of proper capability checks and nonce validation mechanisms within the plugin's AJAX handling code. The flaw specifically affects the reset functionality for payment gateway options, which can be invoked by any user with valid login credentials regardless of their role or permissions within the WordPress system. The vulnerability has been identified as a direct violation of security best practices and aligns with CWE-863, which addresses "Incorrect Authorization" issues in software systems. The affected plugin interface exposes sensitive configuration reset capabilities through AJAX actions that should require administrator-level privileges but instead execute with minimal authentication requirements.
The technical implementation of this vulnerability exploits the plugin's failure to validate user permissions before executing payment gateway reset operations. When an authenticated user accesses the affected AJAX endpoints, the system processes the request without verifying whether the user possesses the necessary administrative capabilities to modify payment configurations. This lack of input validation and authorization checking creates a privilege escalation scenario where low-privilege users can perform actions typically restricted to administrators. The vulnerability is particularly concerning because it allows attackers to clear API credentials and webhook status information, which are essential components for maintaining functional payment processing within the OpenPix payment system. The absence of nonce validation further compounds the risk by eliminating the ability to verify that requests originate from legitimate sources within the WordPress environment. This weakness directly maps to ATT&CK technique T1078.004, which covers "Valid Accounts: Cloud Accounts" and represents how unauthorized access to authenticated accounts can be leveraged to perform administrative actions.
The operational impact of this vulnerability extends beyond simple configuration resets and can cause significant disruption to e-commerce operations. When API credentials are cleared by unauthorized users, the OpenPix payment gateway functionality becomes completely non-operational, resulting in payment processing failures for customers attempting to complete transactions. The persistent nature of this disruption means that merchants may experience ongoing revenue loss and customer dissatisfaction until the configuration is manually restored by authorized administrators. The vulnerability affects any user account that has been granted access to the WordPress system, including subscribers, customers, or even compromised user accounts that could be leveraged by attackers. This broad attack surface increases the likelihood of successful exploitation, as attackers only need to obtain any valid login credential rather than specific administrative privileges. The disruption to payment processing can also impact inventory management, order fulfillment, and customer service operations, creating cascading effects throughout the entire e-commerce ecosystem. The vulnerability's persistence means that even after initial exploitation, the payment gateway remains disabled until proper configuration is restored, potentially causing extended downtime for affected merchants.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security enhancements within the plugin architecture. The most critical immediate action involves implementing proper capability checks that ensure only users with appropriate administrative privileges can access the reset functionality. This requires validating user roles against predefined administrative capabilities before executing any configuration changes. Additionally, all AJAX endpoints must incorporate nonce validation to verify that requests originate from legitimate sources within the WordPress environment. The plugin should also implement rate limiting mechanisms to prevent rapid-fire exploitation attempts and establish logging capabilities to monitor unauthorized access attempts to sensitive configuration endpoints. Organizations should consider implementing role-based access controls that restrict access to payment configuration settings based on user permissions. The vulnerability highlights the importance of following WordPress security guidelines and implementing proper input validation for all user-facing interfaces. Regular security audits of WordPress plugins should include verification of authentication mechanisms and authorization checks to prevent similar issues from occurring in other third-party components. Organizations should also implement automated monitoring systems that can detect unauthorized configuration changes and alert administrators to potential security incidents. The remediation process should include comprehensive testing to ensure that all security patches properly address the vulnerability without introducing regressions in plugin functionality.