Knight Squad Academy
Vulnerability advisory

CVE-2026-1932

Research by Md. Tareq Ahamed Jony February 14, 2026
Overview

Summary

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.

Risk profile

CVSS assessment

5.3 · M E D I U M
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
N E T W O R K
Complexity
L O W
Privileges
N O N E
User interaction
N O N E
Scope
U N C H A N G E D
Confidentiality
N O N E
Integrity
L O W
Availability
N O N E
Classification

Weaknesses

  • Missing Authorization CWE-862
Further reading

References

3 sources
  1. plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bookr/tags/1.0.2/includes/rest-api/controller/appointment-controller.php#L47
  2. plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bookr/trunk/includes/rest-api/controller/appointment-controller.php#L47
  3. www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/2ab4baab-9e91-4ed5-9749-4a14e8180e71?source=cve