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.
CVE-2026-6810 is a medium severity with CVSS 5.3 Authorization Bypass issue affecting the Plugin Booking Calendar Contact Form. It affects Versions up to 1.2.63 and is fixed in 1.2.64.
CVE-2026-6810 is tracked for the Plugin Booking Calendar Contact Form as medium severity with CVSS 5.3. The affected range is Versions up to 1.2.63. Update Booking Calendar Contact Form to 1.2.64 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
booking-calendar-contact-form
View on wordpress.org
|
| CVE | CVE-2026-6810 |
| Patched Versions |
1.2.64
|
| Affected Versions |
Versions up to 1.2.63
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Booking Calendar Contact Form < 1.0.24 - Blind SQL Injection
Booking Calendar Contact Form <= 1.2.58 - Authenticated (Subscriber+) Stored Cross-Site Scripting
Booking Calendar Contact Form <= 1.2.40 - Reflected Cross-Site Scripting
Booking Calendar Contact Form <= 1.0.23 - Reflected Cross-Site Scripting
Booking Calendar Contact Form <= 1.2.60 - Missing Authorization to Unauthenticated Arbitrary Booking Confirmation via 'dex_bccf_ipn' Parameter
Booking Calendar Contact Form <= 1.2.55 - Authenticated (Administrator+) Stored Cross-Site Scripting
Booking Calendar Contact Form <= 1.2.34 - Cross-Site Request Forgery via cpdexbccf_feedback
Booking Calendar Contact Form <= 1.2.34 - Missing Authorization to Authenticated (Subscriber+) Feedback Form Submission
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