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OpenAdvisories
Medium · 6.5 CVE-2026-16039 EUVD-2026-54387GHSA-wgmj-93jg-87w3

MStore API < 4.21.0 - Subscriber+ Order and Customer PII Disclosure via IDOR

Published Aug 7, 2026 · Updated Aug 7, 2026 · Assigned by WPScan

Description

The MStore API WordPress plugin before 4.21.0 does not restrict its vendor-orders endpoint to the caller's own orders, allowing any authenticated user, including Subscribers, to read every WooCommerce order in the store together with each customer's personal information.

Affected products

VendorProductAffectedFixed
— MStore API < 4.21.0 4.21.0

References