CRITICALCVSS v3.1 9.1Vulnerability

CVE-2026-116557

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.

Properties

Severity
CRITICAL
Nvd fetched at
2026-10-31T08:15:48.788147+00:00
Cvss severity
CRITICAL
Cvss score
9.1
Retrieved at
2026-10-31T08:16:23+00:00
Score
9.1
Cvss version
3.1
Last source
NVD
Cve id
CVE-2026-116557
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
First seen by Signal
2026-10-31T08:16:23+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Published at
2026-10-31T07:16:35.857
Last modified
2026-10-31T07:16:35.857

Related Entities (1)

HAS_WEAKNESS (1)

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CVE-2026-116557 (CVSS v3.1 9.1) — Ninja Signal Threat Intelligence | Ninja Signal