The Mesmerize Companion plugin for WordPress is vulnerable to unauthorized access and modification of data due to a missing capability check on the "openPageInCustomizer" and "openPageInDefaultEditor" functions in all versions up to, and including, 1.6.158. This makes it possible for authenticated attackers - with subscriber level access and above, on websites with the Mesmerize theme activated - to mark arbitrary pages as maintainable, wrap their content in custom sections, change page template metadata, and toggle the default editor flag without proper authorization.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Horearadu
  • Mesmerize Companion
Wordpress
  • Wordpress

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References
Link Providers
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3385651%40mesmerize-companion&old=3270403%40mesmerize-companion&sfp_email=&sfph_mail= cve-icon
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3385651%40mesmerize-companion&new=3385651%40mesmerize-companion&sfp_email=&sfph_mail= cve-icon
https://www.wordfence.com/threat-intel/vulnerabilities/id/242a3c60-b8ca-43cc-92d7-eb3830381512?source=cve cve-icon
History

Thu, 19 Feb 2026 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Horearadu
Horearadu mesmerize Companion
Wordpress
Wordpress wordpress
Vendors & Products Horearadu
Horearadu mesmerize Companion
Wordpress
Wordpress wordpress

Thu, 19 Feb 2026 04:15:00 +0000

Type Values Removed Values Added
Description The Mesmerize Companion plugin for WordPress is vulnerable to unauthorized access and modification of data due to a missing capability check on the "openPageInCustomizer" and "openPageInDefaultEditor" functions in all versions up to, and including, 1.6.158. This makes it possible for authenticated attackers - with subscriber level access and above, on websites with the Mesmerize theme activated - to mark arbitrary pages as maintainable, wrap their content in custom sections, change page template metadata, and toggle the default editor flag without proper authorization.
Title Mesmerize Companion <= 1.6.158 - Missing Authorization Authenticated (Subscriber+) Settings Update
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-02-19T03:25:10.834Z

Reserved: 2025-10-21T15:18:05.634Z

Link: CVE-2025-12027

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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