CVE-2023-4242 : Vulnerability Insights and Analysis

A security vulnerability has been identified in the FULL - Customer plugin for WordPress, assigned with CVE ID CVE-2023-4242. This CVE was published on August 9, 2023, by Wordfence after being reserved on August 8, 2023. The vulnerability allows authenticated attackers with subscriber-level permissions and above to access sensitive information through the /health REST route in versions up to and including 2.2.3 due to improper authorization.

Understanding CVE-2023-4242

This section will provide an overview of the CVE-2023-4242 vulnerability in the FULL - Customer WordPress plugin.

What is CVE-2023-4242?

CVE-2023-4242 is an information disclosure vulnerability in the FULL - Customer plugin for WordPress. It allows authenticated attackers to obtain sensitive information about the site configuration using the /health REST route due to improper authorization.

The Impact of CVE-2023-4242

The impact of CVE-2023-4242 is that attackers with specific permissions can access confidential data, posing a risk to the privacy and security of the affected WordPress websites.

Technical Details of CVE-2023-4242

In this section, we will delve into the technical aspects of CVE-2023-4242 vulnerability.

Vulnerability Description

The vulnerability stems from improper authorization in the FULL - Customer plugin for WordPress. This flaw enables authenticated attackers with certain permissions to retrieve sensitive information via the /health REST route in versions up to 2.2.3.

Affected Systems and Versions

The affected system is the FULL - Customer plugin for WordPress, specifically versions up to and including 2.2.3. Websites utilizing these versions are vulnerable to information disclosure.

Exploitation Mechanism

Attackers with at least subscriber-level permissions can exploit this vulnerability by accessing the /health REST route, leading to unauthorized access to confidential site configuration details.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2023-4242 and prevent potential exploitation.

Immediate Steps to Take

Update the FULL - Customer plugin to a version higher than 2.2.3 to patch the vulnerability.
Monitor user permissions and restrict access to sensitive site information.
Regularly review and audit user roles and permissions to ensure proper authorization.

Long-Term Security Practices

Employ the principle of least privilege by granting users only the permissions they need.
Conduct regular security assessments and audits to identify and address vulnerabilities.
Educate users on best security practices to prevent unauthorized access to sensitive information.

Patching and Updates

Stay informed about security updates released by the FULL - Customer plugin developers and promptly apply patches to ensure your website is protected against known vulnerabilities.

By following these mitigation strategies and implementing robust security practices, website owners can enhance the security posture of their WordPress sites and safeguard against potential threats associated with CVE-2023-4242.