CVE-2025-12027: CWE-862 Missing Authorization in horearadu Mesmerize Companion
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.
AI Analysis
Technical Summary
The Mesmerize Companion plugin for WordPress suffers from a missing authorization (CWE-862) vulnerability in the "openPageInCustomizer" and "openPageInDefaultEditor" functions. This flaw allows authenticated users with subscriber-level privileges or above to perform unauthorized modifications on arbitrary pages, including marking pages as maintainable, wrapping content in custom sections, altering page template metadata, and toggling the default editor flag. The vulnerability affects all versions up to and including 1.6.158. The CVSS 3.1 base score is 4.3, reflecting a network attack vector with low complexity, requiring low privileges but no user interaction, and impacts integrity without affecting confidentiality or availability.
Potential Impact
An attacker with subscriber-level access or higher on a WordPress site using the Mesmerize theme and vulnerable plugin version can modify page content and metadata without proper authorization. This could lead to unauthorized content changes and potential site behavior alterations. There is no impact on confidentiality or availability reported. No known exploits have been observed in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, site administrators should consider restricting subscriber-level access or disabling the Mesmerize Companion plugin if feasible. Monitoring for plugin updates from the vendor is recommended to apply any forthcoming patches promptly.
CVE-2025-12027: CWE-862 Missing Authorization in horearadu Mesmerize Companion
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Mesmerize Companion plugin for WordPress suffers from a missing authorization (CWE-862) vulnerability in the "openPageInCustomizer" and "openPageInDefaultEditor" functions. This flaw allows authenticated users with subscriber-level privileges or above to perform unauthorized modifications on arbitrary pages, including marking pages as maintainable, wrapping content in custom sections, altering page template metadata, and toggling the default editor flag. The vulnerability affects all versions up to and including 1.6.158. The CVSS 3.1 base score is 4.3, reflecting a network attack vector with low complexity, requiring low privileges but no user interaction, and impacts integrity without affecting confidentiality or availability.
Potential Impact
An attacker with subscriber-level access or higher on a WordPress site using the Mesmerize theme and vulnerable plugin version can modify page content and metadata without proper authorization. This could lead to unauthorized content changes and potential site behavior alterations. There is no impact on confidentiality or availability reported. No known exploits have been observed in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, site administrators should consider restricting subscriber-level access or disabling the Mesmerize Companion plugin if feasible. Monitoring for plugin updates from the vendor is recommended to apply any forthcoming patches promptly.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2025-10-21T15:18:05.634Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69968d636aea4a407a3900c0
Added to database: 2/19/2026, 4:11:15 AM
Last enriched: 4/9/2026, 8:55:47 PM
Last updated: 5/21/2026, 9:11:39 PM
Views: 120
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