{"cve":"CVE-2026-3461","nvd":{"published":"2026-04-15T09:16:31.383","modified":"2026-06-17T10:43:37.310","status":"Deferred","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["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","https://plugins.trac.wordpress.org/browser/visa-acceptance-solutions/tags/2.1.0/public/class-visa-acceptance-payment-gateway-expresspay-public.php#L790","https://plugins.trac.wordpress.org/browser/visa-acceptance-solutions/trunk/public/class-visa-acceptance-payment-gateway-expresspay-public.php#L777","https://plugins.trac.wordpress.org/browser/visa-acceptance-solutions/trunk/public/class-visa-acceptance-payment-gateway-expresspay-public.php#L790","https://www.wordfence.com/threat-intel/vulnerabilities/id/8d3aea10-d7a0-44bd-94dc-3bad0d27dbd8?source=cve"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:30:49.762551342+00:00"},"epss":{"cve":"CVE-2026-3461","score":0.00475,"percentile":0.41077,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}