CVE-2021-4369 : Exploit Details and Defense Strategies

A detailed overview of CVE-2021-4369, a vulnerability found in the Frontend File Manager plugin for WordPress that allows unauthenticated content injection.

Understanding CVE-2021-4369

This section will provide insights into what CVE-2021-4369 is and its implications.

What is CVE-2021-4369?

The CVE-2021-4369 vulnerability is present in the Frontend File Manager plugin for WordPress, allowing unauthenticated attackers to inject content due to lacking authorization protections.

The Impact of CVE-2021-4369

The impact of CVE-2021-4369 is significant as it enables unauthenticated users to edit the content and title of any page on the website, posing a severe threat to data integrity and website security.

Technical Details of CVE-2021-4369

Explore the specific technical details of the CVE-2021-4369 vulnerability.

Vulnerability Description

The vulnerability arises from missing authorization checks, allowing unauthorized users to edit others' posts without proper validations or security nonces during the wpfm_edit_file_title_desc AJAX action.

Affected Systems and Versions

The Frontend File Manager plugin versions up to and including 18.2 are affected by this vulnerability.

Exploitation Mechanism

The lack of authorization protections and security nonces on the wpfm_edit_file_title_desc AJAX action opens the door for unauthenticated attackers to manipulate content and titles on the website.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-4369 and prevent such vulnerabilities in the future.

Immediate Steps to Take

Website administrators should immediately update the Frontend File Manager plugin to version 18.3 to patch the vulnerability and prevent unauthorized content injection.

Long-Term Security Practices

Implement strict authentication and authorization mechanisms, conduct regular security audits, and stay updated on plugin security patches to enhance website security.

Patching and Updates

Regularly update WordPress plugins and themes, prioritize security releases, and monitor security advisories to protect your website from potential vulnerabilities and attacks.