CVE-2026-57375: Fluxbuilder Mstore API

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Missing Authorization vulnerability in FluxBuilder MStore API mstore-api allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects MStore API: from n/a through <= 4.18.4.

Affected products

• Fluxbuilder Mstore API: up to and including 4.18.4

Published 2026-07-13. Last modified 2026-07-13.