CVE-2021-24797 : Vulnerability Insights and Analysis

Tickera < 3.4.8.3 - Unauthenticated Stored Cross-Site Scripting vulnerability allows unauthenticated users to execute XSS attacks against admins. Learn how to mitigate this security issue.

Understanding CVE-2021-24797

This CVE refers to a security vulnerability in the Tickera WordPress plugin version before 3.4.8.3 that enables unauthenticated users to carry out Cross-Site Scripting attacks against administrators.

What is CVE-2021-24797?

The Tickera WordPress plugin version before 3.4.8.3 fails to properly sanitize and escape the Name fields of booked Events displayed in the Orders admin dashboard, leading to potential XSS attacks by unauthorized users.

The Impact of CVE-2021-24797

This vulnerability poses a severe risk as it allows attackers to inject malicious scripts into the web application, compromising the security and integrity of the admin dashboard and potentially stealing sensitive information.

Technical Details of CVE-2021-24797

The following technical aspects are crucial to understanding the CVE in depth:

Vulnerability Description

The issue lies in the inadequate sanitization and escaping of Name fields within the Tickera plugin, leaving a loophole for malicious actors to exploit and launch XSS attacks.

Affected Systems and Versions

The vulnerability affects Tickera - WordPress Event Ticketing plugin versions earlier than 3.4.8.3.

Exploitation Mechanism

By manipulating the Name fields of booked Events within the plugin, attackers can inject malicious scripts that get executed when displayed on the Orders admin dashboard, potentially leading to further exploitation.

Mitigation and Prevention

To safeguard your system from CVE-2021-24797, consider the following measures:

Immediate Steps to Take

Update the Tickera plugin to version 3.4.8.3 or above.
Monitor admin dashboard for any suspicious activities.
Implement Content Security Policy (CSP) headers to mitigate XSS vulnerabilities.

Long-Term Security Practices

Regularly audit and update plugins to their latest versions.
Educate users and administrators on security best practices.
Conduct security assessments and penetration testing periodically.

Patching and Updates

Stay informed about security updates released by Tickera and promptly apply patches to ensure your system is protected against known vulnerabilities.