CVE-2026-3461

CRITICAL EPSS 37.5%
Published Apr 15, 20262mo ago · Modified Jun 17, 20261w ago
9.8 CVSS 3.1
Critical
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Published Apr 15, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
37.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-288

References 5

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/visa-acceptance-solutions/tags/2.1.0/public/class-visa-acceptance-payment-gateway-expresspay-public.php#L777
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/visa-acceptance-solutions/tags/2.1.0/public/class-visa-acceptance-payment-gateway-expresspay-public.php#L790
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/visa-acceptance-solutions/trunk/public/class-visa-acceptance-payment-gateway-expresspay-public.php#L777
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/visa-acceptance-solutions/trunk/public/class-visa-acceptance-payment-gateway-expresspay-public.php#L790
  • wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/8d3aea10-d7a0-44bd-94dc-3bad0d27dbd8?source=cve

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.