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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-16038
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-07 06:16:55 UTC
Updated2026-08-07 06:16:55 UTC
DescriptionThe 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.

Risk And Classification

Problem Types: CWE-862 Missing Authorization

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown MStore API affected 4.21.0 semver Not specified

References

ReferenceSourceLinkTags
wpscan.com/vulnerability/6321d247-39c7-43a6-a528-202e1118a5d5 [email protected] wpscan.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Sai Praneeth Koti (en)

CNA: WPScan (en)

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