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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.

PUBLISHED Reserved 2025-10-21 | Published 2026-02-19 | Updated 2026-02-19 | Assigner Wordfence




MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Problem types

CWE-862 Missing Authorization

Product status

Default status
unaffected

* (semver)
affected

Timeline

2025-10-13:Discovered
2026-01-28:Vendor Notified
2026-02-18:Disclosed

Credits

Rafshanzani Suhada finder

References

www.wordfence.com/...-b8ca-43cc-92d7-eb3830381512?source=cve

plugins.trac.wordpress.org/...ompanion&sfp_email=&sfph_mail=

plugins.trac.wordpress.org/...ompanion&sfp_email=&sfph_mail=

cve.org (CVE-2025-12027)

nvd.nist.gov (CVE-2025-12027)

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