What the vulnerability does
01Description
The Visa Acceptance Solutions plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 2.1.0. This is due to the `express_pay_product_page_pay_for_order()` function logging users in based solely on a user-supplied billing email address during guest checkout for subscription products, without verifying email ownership, requiring a password, or validating a one-time token. This makes it possible for unauthenticated attackers to log in as any existing user, including administrators, by providing the target user's email address in the billing_details parameter, resulting in complete account takeover and site compromise.
Explanation of Vulnerability in Simple Terms
02Summary
Visa Acceptance Solutions versions 2.1.0 and earlier contain an authentication bypass vulnerability. An attacker can gain unauthorized access to the system without valid credentials, potentially compromising sensitive payment and customer data. The vulnerability requires no user interaction and can be exploited remotely. Immediate patching is critical.
What an attacker can do
03Attacker Capabilities
Gain unauthorized access to the system and read or modify sensitive payment and customer data without valid credentials.
Potential impact on your site
04Site Impact
Attackers can access payment data, customer information, and system configuration without logging in, risking data breach and compliance violations.
Conditions required to exploit
05Prerequisites
Network access to the affected Visa Acceptance Solutions instance. No authentication or user interaction required.
Key dates
06Disclosure timeline
April 15, 2026
CVE published
April 15, 2026
Record updated
