PT-2026-20474 · WordPress · Booking Calendar

Poystick + 1 · Published 2026-02-18 · Updated 2026-02-18 · CVE-2026-2230

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions Booking Calendar versions prior to 10.14.15

Description The Booking Calendar plugin for WordPress is susceptible to an Insecure Direct Object Reference issue. This flaw stems from inadequate validation of a user-controlled key within the handle ajax save function. Authenticated attackers possessing Subscriber-level access or higher, and with booking permissions granted by an Administrator, can potentially modify other users' plugin settings, such as booking calendar display options. Successful exploitation can disrupt the booking calendar functionality for targeted users.

Recommendations Update Booking Calendar to version 10.14.15 or later.

Fix

IDOR

Weakness Enumeration

CWE-639

Related Identifiers

CVE-2026-2230

Affected Products

Booking Calendar

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-2230 · Security Note
• https://twitter.com/CVEnew/status/2024172396584763544 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/60f7df44-22f9-4a9e-a20c-4b8628674079?source=cve · Note
• https://plugins.trac.wordpress.org/browser/booking/trunk/includes/save-user-meta/save-user-meta.php#L90 · Note
• https://plugins.trac.wordpress.org/changeset/3456856 · Note