Dashboard / CVE-2026-116557

CVE-2026-116557

CRITICAL
INFO Priority: 0.03 BB Relevance: 78/100
Published: 2026-10-31 Modified: 2026-10-31 First seen: 2026-10-31 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: High
A: High

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
murgroland WP Booking System – Booking Calendar 0

References & Advisories (6)

Bug Bounty Relevance

78 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

EPSS — Exploitation Probability

0.35%
Raw Score 0.003480
Percentile 28.4%
Date 2026-10-31

Intelligence Sources

mitre ref →
nvd ref →

External Links