CVE-2026-1920 Booktics <= 1.0.16 - Missing Authorization to Addon Plugin Installation

Medium 5.3 Published Updated

Unauthenticated attackers can install addon plugins due to missing capability checks, potentially leading to code execution.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-1920?

CVE-2026-1920 is a medium-severity missing authorization vulnerability in arraytics Booktics – Booking Calendar for Appointments and Service Businesses, published on 10 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-306

Which versions are affected by CVE-2026-1920?

How do I fix CVE-2026-1920?

No fix has been published for CVE-2026-1920 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-1920 being exploited?

There is no known exploitation of CVE-2026-1920 in the wild and no public exploit code.

Sources

Also known as GHSA-g3m5-m9vf-94q5.

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