CVE-2022-3906 Explained : Impact and Mitigation

A Stored Cross-Site Scripting vulnerability in Easy Form Builder WordPress plugin before 3.4.0 allows admin users to perform XSS attacks, bypassing security measures.

Understanding CVE-2022-3906

This CVE identifies a security flaw in the Easy Form Builder plugin for WordPress, potentially enabling malicious users to execute harmful scripts.

What is CVE-2022-3906?

The Easy Form Builder WordPress plugin version less than 3.4.0 fails to properly sanitize certain settings, opening the door for stored XSS attacks by privileged users, including admins.

The Impact of CVE-2022-3906

Exploitation of this vulnerability could lead to unauthorized access, data theft, and potential compromise of the affected WordPress sites, particularly in multisite setups.

Technical Details of CVE-2022-3906

This section delves into the specifics of the vulnerability, the systems affected, and how attackers can exploit the flaw.

Vulnerability Description

The flaw originates from the plugin's failure to adequately sanitize and escape settings, enabling admin users to inject malicious scripts, even when certain capabilities are restricted.

Affected Systems and Versions

The vulnerability affects Easy Form Builder plugin versions prior to 3.4.0, exposing websites that utilize this specific plugin to the risk of XSS attacks.

Exploitation Mechanism

By leveraging the vulnerability in Easy Form Builder, attackers can execute stored XSS attacks, circumventing security controls and potentially compromising the integrity of the affected WordPress installations.

Mitigation and Prevention

Discover the steps to address the CVE-2022-3906 concern and fortify your WordPress sites against similar security threats.

Immediate Steps to Take

Update to Easy Form Builder version 3.4.0 or later to patch the XSS vulnerability.
Regularly monitor for any unusual activity on your WordPress site.

Long-Term Security Practices

Enforce the principle of least privilege for user roles to limit potential attack surfaces.
Conduct regular security audits and assessments of all WordPress plugins and themes in use.

Patching and Updates

Stay informed about security patches released by plugin developers and promptly apply them to safeguard your website against known vulnerabilities.