🔐 CVE Alert

CVE-2026-27543

HIGH 8.1

WordPress MStore API plugin <= 4.20.0 - Privilege Escalation vulnerability

CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th

Unauthenticated Privilege Escalation in MStore API <= 4.20.0 versions.

CWE CWE-266
Vendor fluxbuilder
Product mstore api
Published Aug 13, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Affected Versions

FluxBuilder / MStore API
n/a ≤ 4.20.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗
patchstack.com: https://patchstack.com/database/wordpress/plugin/mstore-api/vulnerability/wordpress-mstore-api-plugin-4-20-0-privilege-escalation-vulnerability?_s_id=cve

Credits

Taylsec | Patchstack Bug Bounty Program