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Description

The Booking Calendar for Appointments and Service Businesses – Booktics plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'Extension_Controller::update_item_permissions_check' function in all versions up to, and including, 1.0.16. This makes it possible for unauthenticated attackers to install addon plugins.

PUBLISHED Reserved 2026-02-04 | Published 2026-03-10 | Updated 2026-03-10 | Assigner Wordfence




MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Problem types

CWE-306 Missing Authentication for Critical Function

Product status

Default status
unaffected

* (semver)
affected

Timeline

2026-03-09:Vendor Notified
2026-03-09:Disclosed

Credits

Kazuma Matsumoto finder

References

www.wordfence.com/...-030a-44aa-8cbf-665c6c6d31a7?source=cve

plugins.trac.wordpress.org/...llers/extension-controller.php

plugins.trac.wordpress.org/...llers/extension-controller.php

cve.org (CVE-2026-1920)

nvd.nist.gov (CVE-2026-1920)

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