CVE-2026-54817

MEDIUM 6.5

WordPress MStore API plugin <= 4.18.4 - Broken Authentication vulnerability

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

Authentication Bypass Using an Alternate Path or Channel vulnerability in FluxBuilder MStore API allows Password Recovery Exploitation. This issue affects MStore API: from n/a through 4.18.4.

CWE	CWE-288
Vendor	fluxbuilder
Product	mstore api
Published	Jun 17, 2026
Last Updated	Jun 17, 2026

Stay Ahead of the Next One

Get instant alerts for fluxbuilder mstore api

Be the first to know when new medium vulnerabilities affecting fluxbuilder mstore api are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

Affected Versions

FluxBuilder / MStore API

n/a ≤ 4.18.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/wordpress/plugin/mstore-api/vulnerability/wordpress-mstore-api-plugin-4-18-4-broken-authentication-vulnerability?_s_id=cve

Credits

Jakub Herman | Patchstack Bug Bounty Program