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 (3)
Core 3
Core References
Scores
CVSS v3
5.3
EPSS
0.0028
EPSS Percentile
20.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-862
Status
published
Products (1)
bssoftware/Appointment Booking Calendar Plugin – Bookr
< 1.0.2
Published
Feb 14, 2026
Tracked Since
Feb 18, 2026