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Description

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.

PUBLISHED Reserved 2026-02-08 | Published 2026-02-18 | Updated 2026-02-18 | Assigner Wordfence




MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Problem types

CWE-639 Authorization Bypass Through User-Controlled Key

Product status

Default status
unaffected

* (semver)
affected

Timeline

2026-02-08:Vendor Notified
2026-02-17:Disclosed

Credits

Tarcísio Luchesi De Almeida Silva finder

References

www.wordfence.com/...-22f9-4a9e-a20c-4b8628674079?source=cve

plugins.trac.wordpress.org/...e-user-meta/save-user-meta.php

plugins.trac.wordpress.org/changeset/3456856/

cve.org (CVE-2026-2230)

nvd.nist.gov (CVE-2026-2230)

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