[ CVE-2026-103324 · Published 15 Oct 2026 ]
Vulnerability in Unknown Cardinity Payment Gateway for WooCommerce
CVSS 5.3
EPSS <1%No fix listed yet
[ Description ]Official 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.
[ 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.