Authorization Bypass Through User-Controlled Key Affecting alextselegidis/easyappointments package, versions <1.6.0


Severity

Recommended
0.0
low
0
10

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  • Snyk IDSNYK-PHP-ALEXTSELEGIDISEASYAPPOINTMENTS-17972363
  • published14 Jul 2026
  • disclosed14 Jul 2026
  • creditUnknown

Introduced: 14 Jul 2026

NewCVE-2026-52839  (opens in a new tab)
CWE-639  (opens in a new tab)

How to fix?

Upgrade alextselegidis/easyappointments to version 1.6.0 or higher.

Overview

alextselegidis/easyappointments is a powerful Open Source Appointment Scheduler that can be installed on your server.

Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key through the appointments/store and appointments/update endpoints. An attacker can manipulate appointment data belonging to other providers by submitting requests with a forged id_users_provider value. This allows unauthorized modification or creation of appointments in another provider's schedule.

CVSS Base Scores

version 4.0
version 3.1