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.
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Fixes

Solution

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Workaround

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History

Sat, 08 Aug 2026 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Mstore
Mstore mstore Api
Wordpress
Wordpress wordpress
Vendors & Products Mstore
Mstore mstore Api
Wordpress
Wordpress wordpress

Fri, 07 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-862
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 07 Aug 2026 07:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-285
CWE-640

Fri, 07 Aug 2026 06:15:00 +0000

Type Values Removed Values Added
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.
Title MStore API < 4.21.0 - Unauthenticated Payment Bypass via Multiple Payment Gateways
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-08-07T18:06:42.205Z

Reserved: 2026-07-17T09:20:54.757Z

Link: CVE-2026-16038

cve-icon Vulnrichment

Updated: 2026-08-07T18:06:38.303Z

cve-icon NVD

Status : Received

Published: 2026-08-07T06:16:55.950

Modified: 2026-08-07T19:17:36.110

Link: CVE-2026-16038

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-08T20:53:30Z

Weaknesses