Unauthorized Data Modification in Appointment Booking Calendar Plugin for WordPress
CVE-2026-1932

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Appointment Booking Calendar Plugin – Bookr
Vendor
CVE Published:
14 February 2026

What is CVE-2026-1932?

The Appointment Booking Calendar Plugin – Bookr for WordPress is susceptible to an unauthorized data modification vulnerability due to a lack of capability checks on the update-appointment REST API endpoint across all versions up to and including 1.0.2. This oversight allows unauthenticated attackers to manipulate the status of any appointment, potentially leading to significant disruptions and unauthorized alterations within the booking system.

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Affected Version(s)

Appointment Booking Calendar Plugin – Bookr * <= 1.0.2

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/bookr/trunk/in...
https://plugins.trac.wordpress.org/browser/bookr/tags/1.0...

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

MD. TAREQ AHAMED JONY
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