Booktics – Appointment Booking Calendar for Service Businesses <= 1.0.27 - Authenticated (Subscriber+) Missing Authorization to Appointment Data and Security Token Exposure via Calendar Appointments Route
- ID
- WPSEC-2026-0587
- Plugin
- Booktics – Appointment Booking Calendar for Service Businesses (booktics)
- Affected
- all versions before 1.0.28
- Remediation
- Update to 1.0.28 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- Weakness
- CWE-862
- Usage
- Plugin Low · Affected versions Low among sites WPSec scans, 2026-10-07
- Attack surface
- Booktics – Appointment Booking Calendar for Service Businesses on WPSec AttackSurface
- Fix released
- Published
Description
The Booktics – Appointment Booking Calendar for Service Businesses plugin for WordPress is vulnerable to unauthorized access of data in all versions up to, and including, 1.0.27 due to a missing ownership check on the calendar appointments REST route, which is available to any logged-in user and returns every appointment in the requested date range, including the customer's name, email address and phone number, the appointment notes, and the per-appointment security token that authorizes cancelling and rescheduling. This makes it possible for authenticated attackers, with subscriber-level access and above, to view other customers' appointment details and, on sites that allow customers to cancel or reschedule their bookings, to cancel or reschedule other customers' appointments.
References
- https://wpsec.com/vuln/WPSEC-2026-0587/
- https://plugins.svn.wordpress.org/booktics/tags/1.0.28/
- https://wordpress.org/plugins/booktics/
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