CVE-2021-24877 : Vulnerability Insights and Analysis

MainWP Child plugin before version 4.1.8 is vulnerable to an SQL injection attack, allowing high privilege users like admins to exploit it when used with the Backup and Staging by WP Time Capsule plugin.

Understanding CVE-2021-24877

This CVE identifies a security vulnerability in the MainWP Child WordPress plugin that could be exploited by high privilege users.

What is CVE-2021-24877?

The MainWP Child plugin, versions earlier than 4.1.8, fail to validate certain parameters before using them in SQL statements, making it susceptible to SQL injection attacks.

The Impact of CVE-2021-24877

The vulnerability could be leveraged by unauthorized users with high privileges, such as administrators, to execute malicious SQL queries, potentially compromising sensitive data.

Technical Details of CVE-2021-24877

This section provides a detailed technical overview of the CVE.

Vulnerability Description

The issue arises from the plugin's failure to properly validate the 'orderby' and 'order' parameters, enabling attackers to inject malicious SQL queries.

Affected Systems and Versions

MainWP Child plugin versions less than 4.1.8 are affected by this vulnerability.

Exploitation Mechanism

High privilege users, especially admins, can exploit this vulnerability when the Backup and Staging by WP Time Capsule plugin is installed.

Mitigation and Prevention

To secure your system, follow the recommended practices below.

Immediate Steps to Take

Update the MainWP Child plugin to version 4.1.8 or later.
Ensure the Backup and Staging by WP Time Capsule plugin is also up to date.

Long-Term Security Practices

Regularly monitor for security advisories and patches related to plugins and extensions.
Implement the principle of least privilege to restrict user access levels.

Patching and Updates

Stay informed about security updates released by the MainWP Child plugin developers and apply them promptly to mitigate potential risks.