CVE-2026-109368WP Booking System <= 2.1.0.3 - Missing Authorization to Authenticated (Subscriber+) Sensitive Information Exposure via wpbs_refresh_calendar_editor AJAX action
Updated under an hour ago ()
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It affects murgroland WP Booking System – Booking Calendar. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-862
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Wordfence
- NVD analysis
- Received
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 17, 2026
Affected products
murgroland WP Booking System – Booking Calendar murgroland:wp_booking_system_booking_calendar (from the name) | through 2.1.0.3 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/164a276a-612f-416f-b9ef-1c2e6dd0e8e4?source=cve
- https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.2/includes/base/admin/calendar/functions-actions-ajax-calendar.php#L12
- https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.2/includes/base/admin/calendar/functions-actions-ajax-calendar.php#L62
- https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.2/includes/base/admin/calendar/class-calendar-editor-outputter.php#L484
- https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.2/includes/base/admin/calendar/class-calendar-editor-outputter.php#L432
- https://plugins.trac.wordpress.org/changeset?old=3730163&old_path=%2Fwp-booking-system%2Ftrunk&new=&new_path=%2Fwp-booking-system%2Ftrunk
- https://plugins.trac.wordpress.org/changeset/3750120/wp-booking-system/trunk/includes/base/admin/calendar/functions-actions-ajax-calendar.php
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.