What’s Vulnerable › Vulnerabilities
CVE-2026-16039: MStore API < 4.21.0 - Subscriber+ Order and Customer PII Disclosure via IDOR
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-07 · updated 2026-08-26
- Weakness: CWE-639
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
- inspireui MStore API – Create Native Android & iOS Apps On The Cloud: before 4.21.0 — fixed in 4.21.0
How to fix
Upgrade to a fixed version: inspireui MStore API – Create Native Android & iOS Apps On The Cloud 4.21.0. Check the vendor advisory for mitigations.
References
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