MStore API < 4.21.0 - Subscriber+ Order and Customer PII Disclosure via IDOR
Published Aug 7, 2026 · Updated Nov 3, 2026
Original summary
Normalized public record · Updated Nov 3, 2026
MStore API < 4.21.0 - Subscriber+ Order and Customer PII Disclosure via IDOR
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
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.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
Record history
Published Aug 7, 2026 · Last refreshed Nov 3, 2026