Is CVE-2026-16038 being exploited?

No public exploit is currently tracked.

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CVE-2026-16038

Description

The MStore API WordPress plugin before 4.21.0 does not verify the payment with the payment gateway before marking an order as paid on several of its payment-completion endpoints, allowing an unauthenticated attacker to mark an arbitrary order fully paid without paying and obtain goods or services for free.