CVE-2021-24891 Explained : Impact and Mitigation

A detailed overview of the CVE-2021-24891 vulnerability in the Elementor Website Builder WordPress plugin.

Understanding CVE-2021-24891

This section will cover what CVE-2021-24891 is and its impact.

What is CVE-2021-24891?

The Elementor Website Builder WordPress plugin before version 3.4.8 is vulnerable to DOM Cross-Site Scripting due to inadequate sanitization of user input.

The Impact of CVE-2021-24891

The vulnerability allows attackers to execute malicious scripts in the context of a user's browser, potentially leading to unauthorized actions.

Technical Details of CVE-2021-24891

Explore the technical aspects of the CVE-2021-24891 vulnerability.

Vulnerability Description

User input appended to the DOM via a malicious hash is not properly sanitized, enabling Cross-Site Scripting attacks.

Affected Systems and Versions

The vulnerability affects versions of the Elementor Website Builder WordPress plugin prior to version 3.4.8.

Exploitation Mechanism

Attackers can exploit this issue by injecting malicious code into vulnerable websites, posing a significant security risk.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-24891 and prevent future vulnerabilities.

Immediate Steps to Take

Website administrators should update the Elementor plugin to version 3.4.8 or newer to address this vulnerability.

Long-Term Security Practices

Implement input validation and output encoding best practices to prevent Cross-Site Scripting vulnerabilities in web applications.

Patching and Updates

Regularly monitor for security updates and apply patches promptly to protect against known vulnerabilities.