CVE-2021-24400 : What You Need to Know

This article provides detailed information about CVE-2021-24400, a security vulnerability found in the Display Users WordPress plugin version 2.0.0.

Understanding CVE-2021-24400

CVE-2021-24400 is an authenticated SQL injection vulnerability discovered in the Display Users WordPress plugin up to version 2.0.0.

What is CVE-2021-24400?

The vulnerability arises from the lack of sanitization, escaping, or validation of the 'id' parameter before inserting it into a SQL statement. This issue allows attackers to perform SQL injection attacks.

The Impact of CVE-2021-24400

Exploiting this vulnerability could enable authenticated attackers to manipulate the SQL database queries, potentially leading to data theft, unauthorized access, and even data corruption on the affected WordPress websites.

Technical Details of CVE-2021-24400

This section covers the technical aspects of CVE-2021-24400.

Vulnerability Description

The vulnerability occurs due to the unsanitized 'id' parameter in the Display Users plugin, allowing for SQL injection attacks.

Affected Systems and Versions

Display Users plugin versions up to 2.0.0 are affected by this vulnerability.

Exploitation Mechanism

Attackers with authenticated access can exploit the 'id' parameter to inject malicious SQL queries into the database, potentially compromising the integrity of the WordPress site.

Mitigation and Prevention

To safeguard your WordPress website from CVE-2021-24400, follow these mitigation steps.

Immediate Steps to Take

Update the Display Users plugin to the latest version to apply security patches.
Monitor website logs for any suspicious activities that could indicate exploitation.

Long-Term Security Practices

Implement input validation and sanitization techniques in your WordPress plugins to prevent SQL injection vulnerabilities.
Regularly audit and update plugins to ensure the latest security fixes are applied.

Patching and Updates

Keep track of security advisories from plugin vendors and apply patches promptly to mitigate known vulnerabilities.