WordPress security changelog
MEDIUM CVE-2026-1920 Deferred

Booking Calendar for Appointments and Service Businesses – Booktics: A security weakness

Booking Calendar for Appointments and Service Businesses – Booktics is affected by a security weakness. The vulnerable path is reachable without authentication. The resulting impact depends on how the affected component exposes the vulnerable operation.

CVE / CNA score 5.3 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Booking Calendar for Appointments and Service Businesses – Booktics
Plugin slug
booktics
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Mar 10, 2026
Weakness
CWE-306 — Missing Authentication for Critical Function

This CVE was published Mar 10, 2026 and is one of 4 known issues for this plugin.

Update, patch or deactivate.

Update Booking Calendar for Appointments and Service Businesses – Booktics to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical 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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Primary and upstream sources