Vulnerability in WP Booking System – Booking Calendar — CVE-2026-116557

What to do now

Update WP Booking System – Booking Calendar to 2.1.0.6 or later.

Affected versions

• Everything up to and including 2.1.0.5

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.

This description is reproduced verbatim from the public vulnerability record.

• https://www.wordfence.com/threat-intel/vulnerabilities/id/b25cc768-3377-41c9-acf5-8f6c993287c9?source=api-prod

Part of this record comes from Wordfence Intelligence. Original: https://www.wordfence.com/threat-intel/vulnerabilities/id/b25cc768-3377-41c9-acf5-8f6c993287c9
Copyright 2012-2026 Defiant Inc. / Full license text

This page is compiled automatically from public databases. Accuracy is not guaranteed; confirm against the vendor advisory before acting.