Is CVE-2026-57375 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-57375 being exploited in the wild.

How severe is CVE-2026-57375?

Medium severity, with a CVSS score of 6.5, published 13 July 2026.

Which products and versions are affected?

FluxBuilder MStore API <= 4.18.4.

Is there a fix for CVE-2026-57375?

A patch was published on 2026-07-07: Patch released in version 4.19.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-57375 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-57375?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-57375: FluxBuilder MStore API missing authorization in mstore-api

Q: Is there a fix for CVE-2026-57375?

A patch was published on 2026-07-07: Patch released in version 4.19.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Q: How is CVE-2026-57375 attacked?

It is attacked over the network, in a software library.

Q: Am I affected by CVE-2026-57375?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-57375 · Severity: medium · CVSS 6.5 · Published 2026-07-13

The MStore API plugin for WordPress, which connects mobile applications to e-commerce stores, contains a security flaw in its access control settings. This vulnerability allows unauthorized individuals to perform actions or access data that should be restricted to administrators or authenticated users. If exploited, this could lead to unauthorized changes to store settings or the exposure of sensitive information, potentially impacting business operations and customer trust.

Quick answers

Is CVE-2026-57375 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-57375 being exploited in the wild.
How severe is CVE-2026-57375?: Medium severity, with a CVSS score of 6.5, published 13 July 2026.
Which products and versions are affected?: FluxBuilder MStore API <= 4.18.4.
Is there a fix for CVE-2026-57375?: A patch was published on 2026-07-07: Patch released in version 4.19.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-57375 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-57375?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A missing authorization vulnerability (CWE-862) exists in the FluxBuilder MStore API (mstore-api) plugin for WordPress. The flaw is rooted in incorrectly configured access control security levels within the API component. An unauthenticated remote attacker can exploit this by sending crafted requests to the API, allowing them to execute functions or access data that should require higher privilege levels. The vulnerability affects all versions up to and including 4.18.4; it was addressed in version 4.19.0.

Affected products

FluxBuilder MStore API <= 4.18.4

Timeline

2026-04-21: other: Vulnerability reported by researcher HaiND
2026-07-07: patched: Patch released in version 4.19.0
2026-07-13: advisory: CVE published to NVD

References

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