CVE-2026-6810 Missing authorization in Booking Calendar Contact Form
Authenticated subscribers can take over other users' calendars and view associated data due to missing validation in the Booking Calendar Contact Form plugin.
- 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-2026-6810?
CVE-2026-6810 is a medium-severity missing authorization vulnerability in codepeople Booking Calendar Contact Form, published on 24 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Booking Calendar Contact Form plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.2.63 via the dex_bccf_admin_int_calendar_list.inc.php file due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, to takeover other user's calendars and view user data associated with the calendar.
Weakness: CWE-639
Which versions are affected by CVE-2026-6810?
How do I fix CVE-2026-6810?
No fix has been published for CVE-2026-6810 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-2026-6810 being exploited?
There is no known exploitation of CVE-2026-6810 in the wild and no public exploit code.
Sources
Also known as GHSA-qfjv-r2q6-x287.