CVE-2021-34647 : Vulnerability Insights and Analysis

Ninja Forms <= 3.5.7 Sensitive Information Disclosure is a vulnerability in the Ninja Forms WordPress plugin that allows authenticated attackers to access sensitive information. This article provides insights into the nature of the vulnerability and how to mitigate the risks associated with it.

Understanding CVE-2021-34647

This section delves into the specifics of the CVE-2021-34647 vulnerability in the Ninja Forms plugin.

What is CVE-2021-34647?

The vulnerability in the Ninja Forms WordPress plugin up to version 3.5.7 allows authenticated attackers to disclose sensitive information via a specific function, posing a risk of exposing personally identifiable data.

The Impact of CVE-2021-34647

The vulnerability's impact includes unauthorized access to Ninja Forms submissions data, potentially compromising the confidentiality of users' personal information.

Technical Details of CVE-2021-34647

Here, we discuss the technical aspects of the CVE-2021-34647 vulnerability.

Vulnerability Description

The flaw lies in the bulk_export_submissions function within the ~/includes/Routes/Submissions.php file, enabling attackers to extract all Ninja Forms submissions data using the /ninja-forms-submissions/export REST API.

Affected Systems and Versions

Ninja Forms versions up to and including 3.5.7 are impacted by this vulnerability, making sites with these versions susceptible to sensitive information disclosure.

Exploitation Mechanism

Authenticated attackers can exploit this vulnerability to export sensitive data through a specific REST API, potentially including personally identifiable information.

Mitigation and Prevention

This section outlines steps to mitigate the risks associated with CVE-2021-34647 in the Ninja Forms plugin.

Immediate Steps to Take

Users are advised to update the plugin to version 3.5.8 or newer to patch the vulnerability and prevent unauthorized access to sensitive information.

Long-Term Security Practices

Implement strong authentication measures and regular security checks to safeguard sensitive data and prevent similar vulnerabilities in the future.

Patching and Updates

Regularly update the Ninja Forms plugin to the latest version and stay informed about security patches to ensure the ongoing security of your WordPress site.