CVE-2021-24232 : Vulnerability Insights and Analysis

A detailed overview of CVE-2021-24232, a vulnerability found in the Advanced Booking Calendar WordPress plugin.

Understanding CVE-2021-24232

This CVE refers to an authenticated reflected Cross-Site Scripting (XSS) vulnerability in versions of the Advanced Booking Calendar plugin prior to 1.6.8.

What is CVE-2021-24232?

The vulnerability arises due to improper sanitization of the license error message displayed on the plugin's settings page. This allows authenticated attackers to execute malicious scripts in users' browsers.

The Impact of CVE-2021-24232

Exploitation of this vulnerability can lead to unauthorized access, data theft, defacement, and other attacks on websites using the affected plugin.

Technical Details of CVE-2021-24232

Get insights into the specific technical aspects of CVE-2021-24232.

Vulnerability Description

The issue stems from insufficient sanitization of user-supplied data before displaying it back to users, facilitating XSS attacks.

Affected Systems and Versions

The vulnerability affects versions of the Advanced Booking Calendar plugin that are older than 1.6.8.

Exploitation Mechanism

Attackers with authenticated access can input malicious scripts in the license error message, which get executed when viewed by other users on the settings page.

Mitigation and Prevention

Discover the best practices to mitigate and prevent CVE-2021-24232.

Immediate Steps to Take

Users should update the Advanced Booking Calendar plugin to version 1.6.8 or newer to eliminate the vulnerability.

Long-Term Security Practices

Regularly update plugins, use security plugins to monitor and block malicious activities, and educate users on best security practices.

Patching and Updates

Stay informed about security patches and update software promptly to address known vulnerabilities.