Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/booking-calendar-contact-form/tags/1.
- https://plugins.trac.wordpress.org/browser/booking-calendar-contact-form/tags/1.
- https://plugins.trac.wordpress.org/browser/booking-calendar-contact-form/tags/1.
- https://plugins.trac.wordpress.org/browser/booking-calendar-contact-form/trunk/d
- https://plugins.trac.wordpress.org/browser/booking-calendar-contact-form/trunk/d
- https://plugins.trac.wordpress.org/browser/booking-calendar-contact-form/trunk/d
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a3977d10-239d-4b83-ab0
FAQ
What is CVE-2026-6810?
CVE-2026-6810 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 f...
How severe is CVE-2026-6810?
CVE-2026-6810 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-6810?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.