CVE-2023-2877 : Vulnerability Insights and Analysis

This CVE-2023-2877 relates to a vulnerability in the Formidable Forms WordPress plugin that allows unauthorized users to execute remote code if not updated to version 6.3.1 or higher.

Understanding CVE-2023-2877

This vulnerability, titled "Formidable Forms < 6.3.1 - Subscriber+ Remote Code Execution," poses a significant threat to WordPress websites using versions prior to 6.3.1 of the Formidable Forms plugin.

What is CVE-2023-2877?

The CVE-2023-2877 vulnerability arises from inadequate user authorization and validation of plugin URLs within the Formidable Forms plugin. It allows users with as low a role as Subscriber to install and activate arbitrary plugins from the WordPress.org repository, potentially leading to remote code execution.

The Impact of CVE-2023-2877

The impact of this vulnerability is severe as it grants unauthorized users the ability to execute remote code on the affected website. This could result in data breaches, defacement of websites, and even complete takeover of the site.

Technical Details of CVE-2023-2877

It is essential to delve into the technical aspects of CVE-2023-2877 to understand its implications better.

Vulnerability Description

The vulnerability in Formidable Forms plugin versions prior to 6.3.1 stems from the lack of proper authorization checks and URL validation, allowing low-level users to install arbitrary plugins, leading to potential remote code execution.

Affected Systems and Versions

The vulnerability impacts websites that use the Formidable Forms plugin with versions lower than 6.3.1. Specifically, users with roles as low as Subscriber are at risk if the plugin is not promptly updated.

Exploitation Mechanism

By exploiting the vulnerability in Formidable Forms plugin versions below 6.3.1, attackers can install and activate plugins from the WordPress.org repository on the target site, ultimately enabling them to execute remote code.

Mitigation and Prevention

Addressing and mitigating CVE-2023-2877 promptly is crucial to safeguarding WordPress websites from potential exploitation and security breaches.

Immediate Steps to Take

Website administrators are urged to update the Formidable Forms plugin to version 6.3.1 or higher immediately to prevent unauthorized users from exploiting the vulnerability.

Long-Term Security Practices

In addition to immediate updates, implementing strict user role management, regular security audits, and monitoring plugin installations can help prevent similar vulnerabilities in the future.

Patching and Updates

Regularly monitoring for plugin updates, promptly applying patches, and staying informed about security vulnerabilities within WordPress plugins can significantly enhance website security and resilience against potential threats.