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CVE-2026-3461

CRITICAL

9.8

Description

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/15/2026

Last Modified4/22/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-288

References

https://plugins.trac.wordpress.org/browser/visa-acceptance-solutions/tags/2.1.0/public/class-visa-acceptance-payment-gateway-expresspay-public.php#L777(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/visa-acceptance-solutions/tags/2.1.0/public/class-visa-acceptance-payment-gateway-expresspay-public.php#L790(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/visa-acceptance-solutions/trunk/public/class-visa-acceptance-payment-gateway-expresspay-public.php#L777(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/visa-acceptance-solutions/trunk/public/class-visa-acceptance-payment-gateway-expresspay-public.php#L790(security@wordfence.com)

https://www.wordfence.com/threat-intel/vulnerabilities/id/8d3aea10-d7a0-44bd-94dc-3bad0d27dbd8?source=cve(security@wordfence.com)

IOC Correlations

No correlations recorded

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