WebinarPress <= 1.33.9 - Reflected Cross-Site Scripting

6.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2024-31256
CVSS 6.1 (Medium)
Publicly Published April 5, 2024
Last Updated April 11, 2024
Researcher Le Ngoc Anh - sun*inc

Description

The WordPress Webinar Plugin – WebinarPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in all versions up to, and including, 1.33.9 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

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

References

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Vulnerability Details for WebinarPress – Webinar System for WordPress

Software Type Plugin
Software Slug wp-webinarsystem (view on wordpress.org)
Patched? Yes
Remediation Update to version 1.33.10, or a newer patched version
Affected Version
  • <= 1.33.9
Patched Version
  • 1.33.10

Recent vulnerabilities in WebinarPress – Webinar System for WordPress

# Title CVE ID CVSS Researchers Date
1 WebinarPress <= 1.33.28 - Missing Authorization CVE-2025-62972 4.3 Legion Hunter October 19, 2025
2 WebinarPress <= 1.33.27 - Authenticated (Administrator+) Server-Side Request Forgery CVE-2025-47635 5.5 Trương Hữu Phúc (truonghuuphuc) May 7, 2025
3 WebinarPress <= 1.33.27 - Open Redirect CVE-2025-32693 6.1 Le Ngoc Anh April 9, 2025
4 WebinarPress <= 1.33.27 - Authenticated (Administrator+) Stored Cross-Site Scripting CVE-2025-31883 4.4 Pham Van Tam April 1, 2025
5 WebinarPress <= 1.33.27 - Missing Authorization CVE-2025-31882 4.3 Peter Thaleikis April 1, 2025
6 WordPress Webinar Plugin – WebinarPress <= 1.33.24 - Missing Authorization to Authenticated (Subscriber+) Webinar Updates CVE-2024-11271 8.8 Lucio Sá January 7, 2025
7 WordPress Webinar Plugin – WebinarPress <= 1.33.24 - Missing Authorization to Authenticated (Subscriber+) Arbitrary File Creation CVE-2024-11270 8.8 Lucio Sá January 7, 2025
8 WebinarPress <= 1.33.20 - Cross-Site Request Forgery CVE-2024-43339 4.3 Le Ngoc Anh August 16, 2024
9 WordPress Webinar Plugin – WebinarPress <= 1.33.20 - Cross-Site Request Forgery CVE-2024-34818 4.3 Majed Refaea May 9, 2024

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