CVE-2026-103324 Details
Description
The Cardinity Payment Gateway for WooCommerce WordPress plugin before 3.4.2 does not properly verify the authenticity of the payment notifications it receives, as the secret used to sign them is empty by default, allowing unauthenticated attackers to forge an approved-payment notification and mark arbitrary orders as paid, or force them to failed.
A vulnerability exists in the Cardinity Payment Gateway for WooCommerce WordPress plugin in versions prior to 3.4.2. The issue arises because the plugin does not adequately verify the authenticity of payment notifications, as the default secret used for signing is empty. This flaw enables unauthenticated attackers to forge payment notifications, falsely marking orders as paid or forcing them to fail.
Users are advised to update the Cardinity Payment Gateway for WooCommerce WordPress plugin to version 3.4.2 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 15, 2026CISA-ADP
Assessed Oct 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://wpscan.com/vulnerability/4e23c520-bb92-47b8-a617-0d334820db50/ | [email protected] | AdvisoryExploitRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-345 | Insufficient Verification of Data Authenticity | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| Cardinity | >= 3.2.6, <= 3.4.1 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 15, 2026 | CVE Modified | CISA-ADP |
| Oct 15, 2026 | New CVE Received | [email protected] |