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Vulnerabilities and Security Researches

MStore API, CVE-2026-18233

CVE, Research URL

CVE-2026-18233

Application

MStore API

Published on
Aug 29, 2026
Research Description
The MStore API WordPress plugin before 4.21.1 does not verify that the order targeted by one of its delivery endpoints belongs to the requester, allowing any authenticated user, including Subscribers, to mark arbitrary orders as completed and paid without any payment being made.
Affected versions
max 4.21.1.
Status
vulnerable