[ CVE-2026-103311 · Published 19 Oct 2026 ]
Vulnerability in Unknown Coinbase Commerce Payment Gateway for WooCommerce
CVSS 5.3
EPSS <1%No fix listed yet
[ Description ]Official 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.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.