CVE-2026-3461Network attack vector

Unauthenticated account takeover via trusted billing email

Published Apr 15, 2026 · Updated Apr 15, 2026

Authentication bypass in Visa Acceptance Solutions 2.1.0 and earlier allows remote attackers to take over WordPress accounts via checkout. The express_pay_product_page_pay_for_order() function treats the billing_details email as an authenticated identity during guest subscription checkout without proving ownership, requiring a password, or validating a one-time token. Guest checkout for a subscription product is required; supplying an administrator's email creates that administrator's logged-in session and grants full site control.

CVSS severity9.8
Critical
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Visa Acceptance Solutions 2.1.0 and earlier allows remote attackers to take over WordPress accounts via checkout. The express_pay_product_page_pay_for_order() function treats the billing_details email as an authenticated identity during guest subscription checkout without proving ownership, requiring a password, or validating a one-time token. Guest checkout for a subscription product is required; supplying an administrator's email creates that administrator's logged-in session and grants full site control.

The record

CVE
CVE-2026-3461
Published
Apr 15, 2026
Updated
Apr 15, 2026
Vendor
Visa
Product
Visa Acceptance Solutions
Classifications
CWE-288, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Visa · Visa Acceptance Solutionsversion=0 <=2.1.0

Published CVSS scores

9.8WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-288Authentication Bypass Using an Alternate Path or Channel
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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