CVE-2021-24360 : What You Need to Know

A detailed overview of the CVE-2021-24360 vulnerability affecting the Yes/No Chart WordPress plugin.

Understanding CVE-2021-24360

This CVE refers to an authenticated Blind SQL Injection vulnerability in the Yes/No Chart WordPress plugin versions prior to 1.0.12.

What is CVE-2021-24360?

The Yes/No Chart WordPress plugin before version 1.0.12 failed to sanitize the

sid

shortcode parameter, allowing medium-privileged users (contributor+) to carry out Blind SQL Injection attacks.

The Impact of CVE-2021-24360

The vulnerability could be exploited by authenticated users with contributor+ privileges to execute malicious SQL Injection queries, potentially leading to unauthorized access to sensitive data or complete compromise of the affected WordPress site.

Technical Details of CVE-2021-24360

This section outlines specific technical details related to the CVE-2021-24360 vulnerability.

Vulnerability Description

The vulnerability arises from inadequate sanitization of the

sid

shortcode parameter in SQL statements, enabling contributor+ users to perform Blind SQL Injection attacks.

Affected Systems and Versions

The vulnerability affects the Yes/No Chart WordPress plugin versions earlier than 1.0.12, making sites with these versions installed susceptible to exploitation.

Exploitation Mechanism

Authenticated users with contributor+ privileges can leverage the vulnerability by injecting malicious SQL queries via the

sid

parameter, potentially causing data leakage or site compromise.

Mitigation and Prevention

To safeguard systems from CVE-2021-24360 and similar vulnerabilities, specific preventive measures need to be taken.

Immediate Steps to Take

Website administrators are advised to update the Yes/No Chart plugin to version 1.0.12 or newer to mitigate the SQL Injection risk. Additionally, monitoring site activities for unauthorized behavior is recommended.

Long-Term Security Practices

Implementing strict input validation mechanisms, limiting user privileges, and regularly auditing plugins for security flaws are essential for maintaining robust WordPress security.

Patching and Updates

Ensuring timely installation of security patches and updates for all installed plugins and maintaining awareness of the latest security advisories are crucial steps in preventing exploitation of known vulnerabilities.