Webba Booking <= 6.0.5 - Authenticated (Administrator+) Stored Cross-Site Scripting

4.4
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2025-54729
CVSS 4.4 (Medium)
Publicly Published August 14, 2025
Last Updated August 19, 2025
Researcher greenhats - Student

Description

The Webba Booking plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 6.0.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only impacts multi-site installations and installations where unfiltered_html has been disabled.

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

References

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Vulnerability Details for Easy Appointment Booking & Scheduling System – Webba Booking Calendar

Software Type Plugin
Software Slug webba-booking-lite (view on wordpress.org)
Patched? Yes
Remediation Update to version 6.0.6, or a newer patched version
Affected Version
  • <= 6.0.5
Patched Version
  • 6.0.6

Recent vulnerabilities in Easy Appointment Booking & Scheduling System – Webba Booking Calendar

# Title CVE ID CVSS Researchers Date
1 Advanced Booking & Appointment System – Webba Booking Calendar <= 6.4.13 - Missing Authorization CVE-2026-27409 5.3 Legion Hunter July 1, 2026
2 Freemius <= 2.10.1 - Reflected DOM-Based Cross-Site Scripting via url Parameter CVE-2024-13362 6.1 Asaf Mozes April 30, 2026
3 Webba Booking <= 6.2.1 - Missing Authorization CVE-2025-66530 4.3 daroo December 15, 2025
4 Webba Booking <= 5.1.20 - Cross-Site Request Forgery CVE-2025-54036 4.3 Nguyen Xuan Chien July 16, 2025
5 Webba Booking <= 5.1.20 - Missing Authorization CVE-2025-54040 5.3 Hiro July 16, 2025
6 Appointment & Event Booking Calendar Plugin – Webba Booking <= 5.0.48 - Missing Authorization to Authenticated (Subscriber+) CSS Settings Update CVE-2024-8432 4.3 Lucio Sá September 23, 2024
7 Webba Booking <= 4.5.33 - Cross-Site Request Forgery CVE-2023-51354 4.3 Skalucy December 26, 2023
8 Freemius SDK <= 2.5.9 - Reflected Cross-Site Scripting via fs_request_get CVE-2023-33999 6.1 Rafie Muhammad July 18, 2023
9 Webba Booking <= 4.2.21 - Authenticated (Admin+) Stored Cross-Site Scripting CVE-2021-36847 5.5 Asif Nawaz Minhas April 15, 2022
10 Freemius SDK <= 2.4.2 - Missing Authorization Checks CVE-2022-4974 6.3 March 4, 2022

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