CVE-2026-18777CWE-862broken-access-control

CVE-2026-18777

Medium · published August 19, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
21.9
In the wild
Unconfirmed
What it is

The TrueBooker WordPress plugin before 1.2.7 does not have proper authorisation checks in one of its AJAX actions, allowing unauthenticated users to change the status of arbitrary appointments, as well as to trigger notification emails to the affected customers.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00304 · 21.9th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-08-19T10:17Z
References (1)
EPSS history
Timeline
  • 19 AUG 06:00Z
    TrueBooker Appointment Booking < 1.2.7 - Unauthenticated Arbitrary Appointment Status Change via update_appointment_status
    cvelistv5