CVE-2025-12027

Medium

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.

SeverityMedium
CVSS4.3
Exploit probability24. percentile0.3%
ProductMesmerize Companion
PublishedFeb 19, 2026
First seenFeb 19, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
horearadu Mesmerize Companionv ≤ 1.6.158—

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