MEDIUMCVSS v3.1 5.3Vulnerability

CVE-2026-103311

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.

Properties

Severity
MEDIUM
Nvd fetched at
2026-10-20T21:14:08.448323+00:00
Epss score
0.00114
Cvss score
5.3
Cvss severity
MEDIUM
Retrieved at
2026-10-21T01:24:48+00:00
Score
5.3
Last source
FIRST EPSS
Cvss version
3.1
Cve id
CVE-2026-103311
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
First seen by Signal
2026-10-19T11:09:12+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Published at
2026-10-19T07:16:30.260
Last modified
2026-10-19T21:04:50.950
Epss percentile
0.01414

Related Entities (1)

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CVE-2026-103311 (CVSS v3.1 5.3) — Ninja Signal Threat Intelligence | Ninja Signal