CVE-2021-24492 : Vulnerability Insights and Analysis

A SQL Injection vulnerability was discovered in the Handsome Testimonials & Reviews WordPress plugin before version 2.1.1. This issue allows any authenticated user to exploit the hndtst_action_instance_callback AJAX call, resulting in SQL Injection.

Understanding CVE-2021-24492

This CVE ID highlights a security flaw in the Handsome Testimonials & Reviews plugin that exposes a SQL Injection risk to authenticated users.

What is CVE-2021-24492?

The vulnerability in the Handsome Testimonials & Reviews WordPress plugin (before 2.1.1) lets authenticated users execute SQL Injection via the hndtst_action_instance_callback AJAX call.

The Impact of CVE-2021-24492

The SQL Injection flaw allows attackers to manipulate the SQL database and potentially access, modify, or delete sensitive information within the affected WordPress installation.

Technical Details of CVE-2021-24492

This section delves into the specific technical aspects of the CVE.

Vulnerability Description

The issue arises from inadequate sanitization, validation, or escaping of the hndtst_previewShortcodeInstanceId POST parameter before using it in an SQL statement, paving the way for SQL Injection attacks.

Affected Systems and Versions

Handsome Testimonials & Reviews versions prior to 2.1.1 are vulnerable to this exploit when accessed by authenticated users.

Exploitation Mechanism

By leveraging the hndtst_action_instance_callback AJAX call with a maliciously crafted hndtst_previewShortcodeInstanceId parameter, attackers can inject and execute arbitrary SQL queries.

Mitigation and Prevention

Protect your system from CVE-2021-24492 with these mitigations and preventive measures.

Immediate Steps to Take

Update the Handsome Testimonials & Reviews plugin to version 2.1.1 or later to patch the SQL Injection vulnerability. Monitor for any unauthorized access or suspicious activities in the system logs.

Long-Term Security Practices

Implement secure coding practices, perform regular security audits, and educate users on the importance of keeping plugins up to date to prevent future vulnerabilities.

Patching and Updates

Stay informed about security patches and updates released by plugin vendors. Promptly apply patches to ensure your WordPress ecosystem remains secure.