CVE-2025-12027
Medium · 4.3CVSS
4.3
EPSS
0.3%
Published
Feb 19, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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