CVE-2021-24865 : What You Need to Know

This article provides details about CVE-2021-24865, a SQL Injection vulnerability in the Advanced Custom Fields: Extended WordPress plugin.

Understanding CVE-2021-24865

This CVE involves a security issue in the Advanced Custom Fields: Extended WordPress plugin version prior to 0.8.8.7 that allows SQL Injection due to inadequate validation of parameters used in SQL statements.

What is CVE-2021-24865?

The vulnerability in the Advanced Custom Fields: Extended WordPress plugin before version 0.8.8.7 arises from the lack of validation for the order and orderby parameters, which leads to a SQL Injection flaw. An attacker could exploit this to manipulate the SQL queries executed by the application.

The Impact of CVE-2021-24865

The SQL Injection vulnerability in the Advanced Custom Fields: Extended plugin could allow an attacker to execute arbitrary SQL commands, potentially leading to data leakage, unauthorized access, or even data deletion on the affected WordPress site.

Technical Details of CVE-2021-24865

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

Vulnerability Description

The issue stems from the plugin's failure to properly sanitize the order and orderby parameters, permitting attackers to inject malicious SQL code into queries.

Affected Systems and Versions

The vulnerability affects Advanced Custom Fields: Extended plugin versions prior to 0.8.8.7.

Exploitation Mechanism

By exploiting this vulnerability, an attacker can craft malicious requests that manipulate SQL queries processed by the plugin, potentially gaining unauthorized access or performing destructive actions.

Mitigation and Prevention

To address CVE-2021-24865, it is crucial to take immediate steps and implement long-term security measures to safeguard WordPress sites.

Immediate Steps to Take

Update the plugin to version 0.8.8.7 or later to mitigate the SQL Injection risk.
Monitor for any suspicious activities or unauthorized access on the WordPress site.

Long-Term Security Practices

Regularly update all plugins and themes to patch known vulnerabilities.
Implement web application firewalls and security plugins to enhance site security.

Patching and Updates

Stay vigilant for security updates from plugin developers and promptly apply patches to address potential vulnerabilities and reinforce the security posture of WordPress installations.