CVE-2026-6810 Details
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.
A vulnerability exists in the Booking Calendar Contact Form plugin for WordPress, specifically in versions up to and including 1.2.63. The issue arises from an Insecure Direct Object Reference (IDOR) in the 'dex_bccf_admin_int_calendar_list.inc.php' file. This vulnerability allows authenticated attackers with Subscriber-level access and above to take over other users' calendars and access associated user data. The vulnerability is caused by a lack of proper validation on a user-controlled key, which could be exploited to manipulate calendar ownership and visibility of personal information.
Users are advised to update the Booking Calendar Contact Form plugin to version 1.2.64 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Apr 24, 2026CISA-ADP
Assessed Apr 24, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-639 | Authorization Bypass Through User-Controlled Key | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Booking Calendar Contact Form | <= 1.2.63 (semver) |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 24, 2026 | New CVE Received | [email protected] |
Volerion