CVE-2026-57375 WordPress MStore API plugin <= 4.18.4 - Broken Access Control vulnerability
Attackers can bypass access controls in the MStore API plugin to perform unauthorized actions due to missing authorization checks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-57375?
CVE-2026-57375 is a medium-severity missing authorization vulnerability in FluxBuilder MStore API, published on 13 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-862
Which versions are affected by CVE-2026-57375?
How do I fix CVE-2026-57375?
No fix has been published for CVE-2026-57375 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-57375 being exploited?
There is no known exploitation of CVE-2026-57375 in the wild and no public exploit code.
Sources
Also known as GHSA-gqww-cwh5-5mwj.