Medium severity5.3NVD Advisory· Published Apr 24, 2026· Updated Apr 24, 2026
CVE-2026-6810
CVE-2026-6810
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <=1.2.63
Patches
Vulnerability mechanics
References
8- plugins.trac.wordpress.org/browser/booking-calendar-contact-form/tags/1.2.63/dex_bccf.phpnvd
- plugins.trac.wordpress.org/browser/booking-calendar-contact-form/tags/1.2.63/dex_bccf_admin_int_calendar_list.inc.phpnvd
- plugins.trac.wordpress.org/browser/booking-calendar-contact-form/tags/1.2.63/dex_bccf_admin_int_calendar_list.inc.phpnvd
- plugins.trac.wordpress.org/browser/booking-calendar-contact-form/trunk/dex_bccf.phpnvd
- plugins.trac.wordpress.org/browser/booking-calendar-contact-form/trunk/dex_bccf_admin_int_calendar_list.inc.phpnvd
- plugins.trac.wordpress.org/browser/booking-calendar-contact-form/trunk/dex_bccf_admin_int_calendar_list.inc.phpnvd
- plugins.trac.wordpress.org/changesetnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/a3977d10-239d-4b83-ab0c-ad165485498dnvd
News mentions
1- Wordfence Intelligence Weekly WordPress Vulnerability Report (April 20, 2026 to April 26, 2026)Wordfence Blog · Apr 30, 2026