CVE-2026-116557

CriticalCVSS 9.1/10Last modified Nov 5, 2026

Description

The WP Booking System - Booking Calendar plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the wpbs_action_ajax_calendar_remove_note() function in versions up to, and including, 2.1.0.5 This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary calendar notes belonging to any calendar.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Weakness enumeration

CWE-862

Affected software

Vendor	Product	Versions
murgroland	WP Booking System – Booking Calendar	<= 2.1.0.5

References

Timeline

Published: Oct 31, 2026
Last modified: Nov 5, 2026
NVD status: Deferred

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