CVE-2026-16038

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Open

TLP:CLEAR

MStore API < 4.21.0 - Unauthenticated Payment Bypass via Multiple Payment Gateways

NVD CVE.org

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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.

Details

EPSS Score ⓘ: 0.24%

15.1th percentile
Confidence: 90%
Published: Aug 7, 2026
Last Modified: Aug 7, 2026

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