CVE-2026-2230CWE-639

Booking Calendar <= 10.14.14 - Insecure Direct Object Reference to Authenticated (Subscriber+) Arbitrary User Settings Modification

Medium · published February 18, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
11.9
In the wild
Unconfirmed
What it is

The Booking Calendar plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 10.14.14 via the handle_ajax_save function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, and booking permissions granted by an Administrator, to modify other users' plugin settings, such as booking calendar display options, which can disrupt the booking calendar functionality for the targeted user.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00220 · 11.9th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-02-18T16:28Z
EPSS history
Timeline
  • 18 FEB 16:28Z
    Booking Calendar <= 10.14.14 - Insecure Direct Object Reference to Authenticated (Subscriber+) Arbitrary User Settings Modification
    cvelistv5