CVE-2026-2230 Missing authorization in Booking Calendar
Authenticated attackers can modify other users' Booking Calendar settings due to missing validation, disrupting functionality.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-2230?
CVE-2026-2230 is a medium-severity missing authorization vulnerability in wpdevelop Booking Calendar, published on 18 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Booking Calendar plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 10.14.14 via the handle_ajax_save function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, and booking permissions granted by an Administrator, to modify other users' plugin settings, such as booking calendar display options, which can disrupt the booking calendar functionality for the targeted user.
Weakness: CWE-639
Which versions are affected by CVE-2026-2230?
How do I fix CVE-2026-2230?
No fix has been published for CVE-2026-2230 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-2026-2230 being exploited?
There is no known exploitation of CVE-2026-2230 in the wild and no public exploit code.
Sources
Also known as GHSA-w35p-gjc5-2g6r.