CVE-2021-24248 : Security Advisory and Response

A detailed analysis of CVE-2021-24248 focusing on the Business Directory Plugin vulnerability in WordPress.

Understanding CVE-2021-24248

This CVE identifies a vulnerability in the Business Directory Plugin for WordPress versions prior to 5.11.1, allowing an authenticated user to upload malicious PHP4 files, potentially leading to Remote Code Execution (RCE).

What is CVE-2021-24248?

The Business Directory Plugin for WordPress before version 5.11.1 lacks proper file validation during imports, enabling the execution of arbitrary PHP code through uploaded files.

The Impact of CVE-2021-24248

This vulnerability poses a significant risk as it can be exploited by an authenticated user to achieve remote code execution within the application, compromising the security and integrity of the WordPress site.

Technical Details of CVE-2021-24248

Explore the technical aspects of the CVE-2021-24248 vulnerability affecting the Business Directory Plugin for WordPress.

Vulnerability Description

The issue arises from the plugin's failure to adequately restrict file types during the import process, allowing PHP4 files to be uploaded and executed, leading to RCE.

Affected Systems and Versions

The Business Directory Plugin versions prior to 5.11.1 are susceptible to this vulnerability, putting WordPress sites at risk of unauthorized code execution.

Exploitation Mechanism

By exploiting this vulnerability, an authenticated attacker can upload a PHP4 file within an archive, triggering the execution of malicious code and potentially compromising the entire WordPress site.

Mitigation and Prevention

Discover the essential steps to mitigate and prevent the exploitation of CVE-2021-24248 in the Business Directory Plugin for WordPress.

Immediate Steps to Take

Administrators should immediately update the Business Directory Plugin to version 5.11.1 or newer to address this vulnerability and prevent unauthorized file uploads.

Long-Term Security Practices

Adopt a proactive approach to security by regularly monitoring and updating WordPress plugins and themes to avoid similar vulnerabilities in the future.

Patching and Updates

Stay informed about security patches and updates for the Business Directory Plugin to ensure the ongoing protection of your WordPress site from potential security threats.