CVE-2021-24240 : What You Need to Know

A detailed overview of the CVE-2021-24240 vulnerability in the Business Hours Pro WordPress plugin version 5.5.0 and earlier, exposing systems to remote code execution.

Understanding CVE-2021-24240

This section delves into the nature of the vulnerability and its potential impact.

What is CVE-2021-24240?

The Business Hours Pro WordPress plugin version 5.5.0 and below allows remote attackers to upload arbitrary files through its manual update feature, resulting in an unauthenticated remote code execution vulnerability.

The Impact of CVE-2021-24240

The vulnerability facilitates unauthorized remote code execution, enabling attackers to compromise the affected systems without authentication.

Technical Details of CVE-2021-24240

Here are the specifics related to the CVE-2021-24240 vulnerability in the Business Hours Pro plugin.

Vulnerability Description

CVE-2021-24240 stems from the plugin's ability to let remote attackers upload unauthorized files, leading to severe security implications.

Affected Systems and Versions

Business Hours Pro versions 5.5.0 and earlier are impacted by this vulnerability, leaving them susceptible to remote code execution attacks.

Exploitation Mechanism

The vulnerability is exploited through the manual update functionality of the plugin, allowing threat actors to upload malicious files.

Mitigation and Prevention

Learn how to protect your systems from CVE-2021-24240 and prevent potential exploits.

Immediate Steps to Take

Update the Business Hours Pro plugin to a secure version, implement network-level security controls, and monitor for any suspicious activities.

Long-Term Security Practices

Enforce the principle of least privilege, conduct regular security assessments, and educate users on safe computing habits to enhance overall cybersecurity posture.

Patching and Updates

Stay informed about security patches released by the plugin vendor, apply updates promptly, and maintain a proactive approach towards system security.