CVE-2026-12493 Zaytech CVE debrief

Who should care

Users of the Clover Payment Gateway by Zaytech for WooCommerce WordPress plugin, especially those who have not updated to version 1.3.6 or later, should be aware of this vulnerability. This vulnerability could potentially allow attackers to manipulate order payments, leading to financial losses or other security issues. Affected operators, platforms, vulnerability-management, and security teams should review and act on this vulnerability.

Technical summary

The Clover Payment Gateway by Zaytech for WooCommerce WordPress plugin before 1.3.6 does not properly validate external payment records. Specifically, it fails to verify that an approved external payment record belongs to the WooCommerce order being completed and does not check if the paid amount matches the order total. This oversight allows unauthenticated users to mark arbitrary orders as paid by replaying a single genuinely-approved payment reference. The vulnerability could potentially allow attackers to manipulate order payments, leading to financial losses or other security issues.

Defensive priority

High

Recommended defensive actions

• Update the Clover Payment Gateway by Zaytech for WooCommerce WordPress plugin to version 1.3.6 or later
• Monitor payment records for suspicious activity
• Implement additional verification steps for external payment records
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-07-27T07:16:24.480Z and has not been modified since then. The NVD entry is currently in the 'Received' status. The Clover Payment Gateway by Zaytech for WooCommerce WordPress plugin before 1.3.6 has a vulnerability allowing unauthenticated users to mark arbitrary orders as paid. This is possible because the plugin does not verify that an approved external payment record actually belongs to the WooCommerce order being completed, nor that the paid amount matches the order total. The vulnerability could potentially allow attackers to manipulate order payments, leading to financial losses or other security issues. Users should verify their plugin version and update to 1.3.6 or later if necessary.

Official resources