What the vulnerability does
01Description
The Booking Calendar plugin for WordPress is vulnerable to Missing Authorization leading to Sensitive Information Exposure in all versions up to, and including, 10.14.11. This makes it possible for authenticated attackers, with Subscriber-level access and above, to view all booking records in the database, including personally identifiable information (PII) such as names, email addresses, phone numbers, physical addresses, payment status, booking costs, and booking hashes belonging to other users.
Explanation of Vulnerability in Simple Terms
02Summary
Booking Calendar versions up to 10.14.11 fail to properly check user permissions before allowing access to certain functions. A logged-in user with low privileges can read sensitive information they should not have access to. The vulnerability requires an active user account but no special interaction from the victim.
What an attacker can do
03Attacker Capabilities
Read sensitive data they should not have access to as a low-privilege user.
Potential impact on your site
04Site Impact
Unauthorized users can access confidential information stored in Booking Calendar.
Conditions required to exploit
05Prerequisites
Attacker must have a valid user account with low privileges on the site.
Key dates
06Disclosure timeline
January 16, 2026
CVE published
April 8, 2026
Record updated
