Description
The Coinbase Commerce Payment Gateway for WooCommerce WordPress plugin through 1.4.1 does not verify the authenticity of incoming payment webhook notifications, because the shared secret used to validate the request signature is empty by default and nothing rejects an unconfigured secret, allowing unauthenticated attackers to forge notifications that mark arbitrary orders as paid or cancel already-paid orders.
Published: 2026-10-19
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 19 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
CWE-522
CWE-693

Mon, 19 Oct 2026 10:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-345
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 19 Oct 2026 09:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
CWE-522
CWE-693

Mon, 19 Oct 2026 07:00:00 +0000

Type Values Removed Values Added
Description The Coinbase Commerce Payment Gateway for WooCommerce WordPress plugin through 1.4.1 does not verify the authenticity of incoming payment webhook notifications, because the shared secret used to validate the request signature is empty by default and nothing rejects an unconfigured secret, allowing unauthenticated attackers to forge notifications that mark arbitrary orders as paid or cancel already-paid orders.
Title Coinbase Commerce Payment Gateway for WooCommerce <= 1.4.1 - Unauthenticated Webhook Signature Bypass via Empty-Default Webhook Shared Secret
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-10-19T09:31:22.100Z

Reserved: 2026-09-30T11:40:54.464Z

Link: CVE-2026-103311

cve-icon Vulnrichment

Updated: 2026-10-19T09:25:32.703Z

cve-icon NVD

Status : Received

Published: 2026-10-19T07:16:30.260

Modified: 2026-10-19T10:16:42.823

Link: CVE-2026-103311

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-19T13:30:14Z

Weaknesses
  • CWE-345

    Insufficient Verification of Data Authenticity