CVE-2021-38346 Explained : Impact and Mitigation

A detailed analysis of the CVE-2021-38346 vulnerability affecting Brizy - Page Builder plugin for WordPress.

Understanding CVE-2021-38346

This CVE discloses an authenticated unrestricted file upload and path traversal vulnerability in the Brizy plugin.

What is CVE-2021-38346?

The Brizy Page Builder plugin version 2.3.11 and below for WordPress allowed authenticated users to upload executable files to a chosen location, leading to a path traversal exploit.

The Impact of CVE-2021-38346

With a CVSS base score of 8.8, this vulnerability poses a high risk, impacting confidentiality, integrity, and availability of affected systems.

Technical Details of CVE-2021-38346

Exploring the specifics of this security flaw.

Vulnerability Description

Users could upload executable files via an AJAX action, allowing for directory traversal, potentially resulting in the execution of malicious code.

Affected Systems and Versions

Brizy - Page Builder version 2.3.11 and below on WordPress are susceptible to this issue, affecting systems utilizing the plugin.

Exploitation Mechanism

By leveraging the brizy_create_block_screenshot AJAX action, attackers could upload and execute files in a location of their choosing, compromising system security.

Mitigation and Prevention

Guidelines to address and prevent the CVE-2021-38346 vulnerability.

Immediate Steps to Take

Users are advised to update the Brizy plugin to a patched version and restrict access to sensitive directories to mitigate potential risks.

Long-Term Security Practices

Regularly monitoring and auditing plugin updates and enforcing the principle of least privilege can enhance overall security posture.

Patching and Updates

Ensuring plugins are updated promptly and maintaining a robust patch management strategy is crucial to prevent exploitation of known vulnerabilities.