CVE-2026-27356

WordPress MC4WP plugin <= 4.14.1 - Broken Access Control vulnerability

Published Nov 6, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
Missing Authorization vulnerability in ibericode MC4WP mailchimp-for-wp allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects MC4WP: from n/a through 4.14.1.

Remediation

Vendor Solution

Update the WordPress MC4WP plugin to the latest available version (at least 4.15.0).

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Ibericode
Ibericode mc4wp
Wordpress-extensions
Wordpress-extensions mc4wp
Vendors & Products Ibericode
Ibericode mc4wp
Wordpress-extensions
Wordpress-extensions mc4wp
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Missing Authorization vulnerability in ibericode MC4WP mailchimp-for-wp allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects MC4WP: from n/a through 4.14.1.
Title WordPress MC4WP plugin <= 4.14.1 - Broken Access Control vulnerability
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Patchstack
Published
Updated
Nov 10, 2026, 8:33 PM
Reserved
Feb 19, 2026, 9:51 AM
Status
Deferred
Published
Nov 6, 2026, 11:17 PM
Modified
Nov 10, 2026, 9:19 PM