CVE-2026-57375 MEDIUM

CVE-2026-57375: WordPress MStore API plugin <= 4.18.4 - Broken Access Control vulnerability

Vendor Fluxbuilder
Product MStore API
Weakness CWE-862 · Missing authorization
Published July 13, 2026
Last update July 13, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

What the vulnerability does

01Description

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.

Explanation of Vulnerability in Simple Terms

02Summary

MStore API through version 4.18.4 lacks proper authorization checks, allowing unauthenticated attackers to read and modify sensitive data. The vulnerability requires no user interaction and is remotely exploitable over the network. Affected installations should update to a version newer than 4.18.4.

What an attacker can do

03Attacker Capabilities

Read and modify sensitive data without authentication.

Potential impact on your site

04Site Impact

Unauthorized users can access and alter data in MStore API installations without logging in.

Conditions required to exploit

05Prerequisites

Network access to the MStore API; no authentication or user interaction required.

Key dates

06Disclosure timeline

July 13, 2026 CVE published

Related vulnerabilities

08Related CVE