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CVE-2026-109368

MEDIUM 6.5 CVSS 3.1
Published
October 17, 2026
Last modified
October 19, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-862
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Description

The WP Booking System – Booking Calendar plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.1.0.3 via the 'id' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to extract private per-event booking descriptions and booking IDs from any calendar managed by the site.

Affected WordPress components

  • WP Booking System – Booking Calendar Plugin · wp-booking-system
    Confirmed match Active
    Up to and including 2.1.0.3
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • murgroland WP Booking System – Booking Calendar — Up to and including 2.1.0.3

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.2/includes/base/admin/calendar/class-calendar-editor-outputter.php#L432
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.2/includes/base/admin/calendar/class-calendar-editor-outputter.php#L484
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.2/includes/base/admin/calendar/functions-actions-ajax-calendar.php#L12
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.2/includes/base/admin/calendar/functions-actions-ajax-calendar.php#L62
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3750120/wp-booking-system/trunk/includes/base/admin/calendar/functions-actions-ajax-calendar.php
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?old=3730163&old_path=%2Fwp-booking-system%2Ftrunk&new=&new_path=%2Fwp-booking-system%2Ftrunk
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/164a276a-612f-416f-b9ef-1c2e6dd0e8e4?source=cve
  • nvd.nist.gov Official NVD record