Booking calendar, Appointment Booking System <= 3.2.36 - Unauthenticated Stored Cross-Site Scripting

7.2
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2026-14334
CVSS 7.2 (High)
Publicly Published August 17, 2026
Last Updated August 20, 2026
Researcher Samdup Choephel

Description

The Booking calendar, Appointment Booking System plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.2.36. This is due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

References

Share

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 - Unauthenticated Insecure Direct Object Reference CVE-2026-73395 5.3 Jakub Herman August 18, 2026
2 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
3 Booking calendar, Appointment Booking System <= 3.2.36 - Missing Authorization CVE-2026-57778 5.3 Nabil Irawan July 2, 2026
4 Booking calendar, Appointment Booking System <= 3.2.36 - Unauthenticated Stored Cross-Site Scripting CVE-2026-25435 7.2 dragonzen March 18, 2026
5 Booking calendar, Appointment Booking System <= 3.2.30 - Missing Authorization CVE-2025-67574 5.3 Legion Hunter December 15, 2025
6 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
7 Booking Calendar and Booking Calendar Pro <= Multiple Versions - Reflected Cross-Site Scripting via 'calendar_id' CVE-2024-12077 6.1 vgo0 January 6, 2025
8 Booking Calendar WpDevArt <= 3.2.19 - Authenticated (Contributor+) SQL Injection CVE-2024-10856 6.5 Peter Thaleikis December 23, 2024
9 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
10 Booking calendar, Appointment Booking System <= 3.2.3 - Missing Authorization CVE-2023-24407 4.1 yuyudhn January 27, 2024

Did you know Wordfence Intelligence provides free personal and commercial API access to our comprehensive WordPress vulnerability database, along with a free webhook integration to stay on top of the latest vulnerabilities added and updated in the database? Get started today!

Learn more

Want to get notified of the latest vulnerabilities that may affect your WordPress site?
Install Wordfence on your site today to get notified immediately if your site is affected by a vulnerability that has been added to our database.

Get Wordfence

The Wordfence Intelligence WordPress vulnerability database is completely free to access and query via API. Please review the documentation on how to access and consume the vulnerability data via API.

Documentation