Appointment Booking Calendar Plugin <= 1.0.2 - Missing Authorization to Unauthenticated Arbitrary Appointment Status Modification

Missing Authorization
CVE CVE-2026-1932
CVSS Medium (5.3)
Publicly Published February 13, 2026
Last Updated February 14, 2026
Researcher MD. TAREQ AHAMED JONY (itztrq)
Description

The Appointment Booking Calendar Plugin – Bookr plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the update-appointment REST API endpoint in all versions up to, and including, 1.0.2. This makes it possible for unauthenticated attackers to modify the status of any appointment.

References

1 affected software package

Software Type Plugin
Software Slug bookr (view on wordpress.org)
Patched? No
Affected Version
  • <= 1.0.2
Patched Version
This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.
License: Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy. License Detail.