CVE-2026-56029 in CorvusPay WooCommerce Payment Gateway Plugin
Summary
by MITRE • 06/26/2026
Unauthenticated Broken Authentication in CorvusPay WooCommerce Payment Gateway <= 2.7.4 versions.
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Analysis
by VulDB Data Team • 06/27/2026
The vulnerability identified as unauthenticated broken authentication in CorvusPay WooCommerce Payment Gateway affects versions up to and including 2.7.4, representing a critical weakness in the payment processing infrastructure that directly impacts the security posture of e-commerce platforms utilizing this plugin. This flaw allows attackers to bypass authentication mechanisms and gain unauthorized access to sensitive payment processing functions without proper credentials or authorization, creating a significant risk for both merchants and customers conducting online transactions through affected WooCommerce stores.
The technical implementation of this vulnerability stems from inadequate validation of user authentication status within the payment gateway plugin's codebase. Specifically, the CorvusPay plugin fails to properly verify that incoming requests originate from authenticated administrators or authorized payment processing endpoints before executing sensitive operations such as transaction processing, configuration changes, or data retrieval functions. This broken authentication mechanism enables malicious actors to exploit the system by crafting specially crafted requests that circumvent normal access controls and execute privileged operations with elevated privileges.
From an operational standpoint, this vulnerability creates substantial risk for e-commerce businesses using the affected plugin version, potentially allowing attackers to manipulate payment transactions, access sensitive customer data, modify payment configurations, or even redirect payments to unauthorized accounts. The impact extends beyond immediate financial losses to include potential regulatory compliance violations under payment card industry standards and data protection regulations such as pci dss requirements that mandate proper authentication controls for payment processing systems. Organizations may face significant reputational damage and legal consequences if customer payment information is compromised through exploitation of this vulnerability.
Security professionals should note that this issue aligns with common weakness enumeration cwes 287, which specifically addresses improper authentication mechanisms in software applications. The vulnerability also maps to attack technique ta0001 in the mitre att&ck framework, representing privilege escalation and unauthorized access patterns commonly observed in web application attacks. Organizations should immediately implement mitigations including updating to the latest plugin version that addresses this authentication flaw, implementing additional network-level controls such as rate limiting and access restrictions, and conducting comprehensive security assessments of their payment processing infrastructure to identify potential exploitation vectors.
The remediation strategy requires immediate deployment of the patched version of CorvusPay WooCommerce Payment Gateway, which typically includes strengthened authentication checks and proper session management mechanisms. Additionally, organizations should conduct thorough code reviews of custom payment integration points, implement proper input validation controls, and establish monitoring procedures for suspicious authentication attempts or unauthorized access patterns within their payment processing systems. Regular security assessments and vulnerability scanning should be integrated into the continuous security monitoring program to prevent similar issues from emerging in other components of the payment ecosystem.
Organizations utilizing this plugin should also consider implementing additional defensive measures such as web application firewalls with specific rules targeting known attack patterns, network segmentation to isolate payment processing functions, and comprehensive logging of authentication events for forensic analysis. The vulnerability demonstrates the critical importance of proper authentication controls in payment processing systems where failure to implement adequate security measures can result in complete compromise of financial transaction data and customer information assets.