Booking calendar, Appointment Booking System <= 3.2.36 - Missing Authorization

5.3
Missing Authorization
CVE CVE-2026-57778
CVSS 5.3 (Medium)
Publicly Published July 2, 2026
Last Updated July 7, 2026
Researcher Nabil Irawan - Heroes Cyber Security

Description

The Booking calendar, Appointment Booking System plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 3.2.36. This makes it possible for unauthenticated attackers to perform an unauthorized action.

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Vulnerability Details for Booking calendar, Appointment Booking System

Software Type Plugin
Software Slug booking-calendar (view on wordpress.org)
Patched? No
Remediation No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
Affected Version
  • <= 3.2.36

Recent vulnerabilities in Booking calendar, Appointment Booking System

# Title CVE ID CVSS Researchers Date
1 Booking calendar, Appointment Booking System <= 3.2.36 - Missing Authorization to Unauthenticated Arbitrary Modification via wpdevart_payment AJAX Action CVE-2026-8840 5.3 Raihan Adi Arba August 14, 2026
2 Booking calendar, Appointment Booking System <= 3.2.36 - Unauthenticated Stored Cross-Site Scripting CVE-2026-25435 7.2 dragonzen March 18, 2026
3 Booking calendar, Appointment Booking System <= 3.2.30 - Missing Authorization CVE-2025-67574 5.3 Legion Hunter December 15, 2025
4 Booking calendar, Appointment Booking System <= 3.2.17 - Unauthenticated Time-Based SQL Injection via 'wpdevart_id' CVE-2026-15289 5.9 shaman0x01 July 1, 2025
5 Booking Calendar and Booking Calendar Pro <= Multiple Versions - Reflected Cross-Site Scripting via 'calendar_id' CVE-2024-12077 6.1 vgo0 January 6, 2025
6 Booking Calendar WpDevArt <= 3.2.19 - Authenticated (Contributor+) SQL Injection CVE-2024-10856 6.5 Peter Thaleikis December 23, 2024
7 Booking calendar, Appointment Booking System <= 3.2.15 - Unauthenticated Stored Cross-Site Scripting via SVG File Upload CVE-2024-9504 7.2 Rein Daelman (trein) November 25, 2024
8 Booking calendar, Appointment Booking System <= 3.2.3 - Missing Authorization CVE-2023-24407 4.1 yuyudhn January 27, 2024
9 Booking Calendar WpDevArt <= 3.2.11 - Authenticated (Admin+) SQL Injection 7.2 October 29, 2023
10 Booking calendar, Appointment Booking System <= 3.2.8 - Multiple Authenticated(Editor+) SQL Injection 7.2 September 12, 2023

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