CVE-2026-97219: Unknown Mstore API

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

The MStore API WordPress plugin before 4.22.1 does not restrict which fields of an order a customer may update, allowing any authenticated user with a self-registerable account to change the status of their own unpaid order to a paid or fulfilled state and receive the goods without paying.

Affected products

• Unknown Mstore API: from 4.21.1, before 4.22.1 (fixed in 4.22.1)

Published 2026-10-02. Last modified 2026-10-02.