# CVE-2026-6810

> Vulnerability · severity: **MEDIUM** (CVSS 5.3).

## 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.

## Key facts

- **CVE ID:** CVE-2026-6810
- **Published:** 2026-04-24
- **CVSS severity:** MEDIUM
- **CVSS base score:** 5.3
- **CWE codes:** CWE-639

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-6810

## Citation

> AI Analytics. CVE-2026-6810. Retrieved 2026-07-23 from https://api.ai-analytics.org/cve/CVE-2026-6810. Derived from NIST NVD. Licensed CC0.

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