CVE-2026-103311
Coinbase Commerce Payment Gateway for WooCommerce <= 1.4.1 - Unauthenticated Webhook Signature Bypass via Empty-Default Webhook Shared Secret
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | unknown |
| Product | coinbase commerce payment gateway for woocommerce |
| Published | Oct 19, 2026 |
Stay Ahead of the Next One
Get instant alerts for unknown coinbase commerce payment gateway for woocommerce
Be the first to know when new medium vulnerabilities affecting unknown coinbase commerce payment gateway for woocommerce are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Unknown / Coinbase Commerce Payment Gateway for WooCommerce
0 ≤ 1.4.1
References
Credits
Naoki Kawahigashi WPScan