Vulnerability · Published Oct 15, 2026 · Assigned by WPScan

CVE-2026-103324Cardinity Payment Gateway for WooCommerce 3.2.6 - 3.4.1 - Unauthenticated Arbitrary Order Payment Forgery via Empty-Default Project Secret

Medium 5.3

In plain English

A medium-severity insufficient verification of data authenticity in Cardinity Payment Gateway for WooCommerce from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.1%top 97.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
Unknown	Cardinity Payment Gateway for WooCommerce	3.2.6 – before 3.4.2

Weakness: CWE-345 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References

https://wpscan.com/vulnerability/4e23c520-bb92-47b8-a617-0d334820db50/ exploit, vdb-entry, technical-description