CVE-2026-6810: Codepeople Booking Calendar Contact Form

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Codepeople Booking Calendar Contact Form: up to and including 1.2.63

Published 2026-04-24. Last modified 2026-06-17.