CVE-2021-24905 : What You Need to Know
Discover details about CVE-2021-24905, a critical vulnerability in Advanced Contact form 7 DB WordPress plugin < 1.8.7. Learn about the impact, affected versions, and mitigation steps.
This article provides insights into CVE-2021-24905, a vulnerability found in the Advanced Contact form 7 DB WordPress plugin before version 1.8.7 that allows authenticated users to delete arbitrary files on the web server.
Understanding CVE-2021-24905
This section delves into details surrounding the vulnerability in the Advanced Contact form 7 DB plugin.
What is CVE-2021-24905?
The Advanced Contact form 7 DB WordPress plugin before 1.8.7 lacks authorization and CSRF checks in the acf7_db_edit_scr_file_delete AJAX action. This flaw permits any authenticated user to delete files without proper validation, leading to severe consequences.
The Impact of CVE-2021-24905
Exploiting this vulnerability enables attackers to delete crucial files like wp-config.php, potentially allowing them to trigger WordPress setup, escalate privileges, and execute malicious code or display unauthorized content to users.
Technical Details of CVE-2021-24905
In this section, we will explore the technical aspects of CVE-2021-24905.
Vulnerability Description
The vulnerability arises due to the lack of authorization and CSRF checks, combined with the absence of file validation in the plugin's AJAX action, enabling arbitrary file deletions by authenticated users.
Affected Systems and Versions
The affected product is the 'Advanced Contact form 7 DB' WordPress plugin with versions prior to 1.8.7.
Exploitation Mechanism
Attackers with authenticated access can exploit the vulnerability by deleting sensitive files, leading to potential server compromise and unauthorized access.
Mitigation and Prevention
This section discusses measures to mitigate the risks associated with CVE-2021-24905.
Immediate Steps to Take
It is crucial to update the plugin to version 1.8.7 or newer to address the vulnerability and prevent unauthorized file deletions.
Long-Term Security Practices
Regularly monitor for plugin updates and security advisories to promptly apply patches and protect your WordPress installation from potential threats.
Patching and Updates
Ensuring timely application of security patches and updates is essential in maintaining a secure WordPress environment.