CVE-2023-2223 : Security Advisory and Response

This CVE involves a vulnerability in the Login Rebuilder WordPress plugin before version 2.8.1, allowing high privilege users to execute Stored Cross-Site Scripting attacks.

Understanding CVE-2023-2223

This section provides an insight into the nature and impact of CVE-2023-2223.

What is CVE-2023-2223?

CVE-2023-2223 pertains to a Stored Cross-Site Scripting vulnerability in the Login Rebuilder WordPress plugin version prior to 2.8.1. This flaw arises due to inadequate sanitization and escaping of certain settings in the plugin, enabling privileged users like admins to execute XSS attacks.

The Impact of CVE-2023-2223

The vulnerability poses a significant risk as it allows attackers with high privileges to inject malicious scripts into the plugin's settings, potentially leading to unauthorized actions, data theft, or further compromise of the affected WordPress sites.

Technical Details of CVE-2023-2223

Explore the specific technical aspects of CVE-2023-2223 below.

Vulnerability Description

The flaw in the Login Rebuilder plugin occurs because it fails to properly sanitize and escape certain settings, enabling admin-level users to insert malicious scripts, even in environments where the unfiltered_html capability is restricted.

Affected Systems and Versions

The issue impacts the Login Rebuilder WordPress plugin versions earlier than 2.8.1, leaving them vulnerable to exploitation by privileged users seeking to execute Stored Cross-Site Scripting attacks.

Exploitation Mechanism

By leveraging the vulnerability in the Login Rebuilder plugin, high privilege users can input malicious scripts into the plugin's settings, which are then executed within the context of other users accessing the affected WordPress site, potentially leading to unauthorized actions and data theft.

Mitigation and Prevention

Discover effective strategies to mitigate the risks associated with CVE-2023-2223 and prevent potential exploitation.

Immediate Steps to Take

Update to the latest version of the Login Rebuilder plugin (2.8.1 or higher) to patch the vulnerability and enhance the security of your WordPress site.
Monitor site activity for any signs of unauthorized script injection or unusual behavior that could indicate exploitation of the XSS vulnerability.

Long-Term Security Practices

Regularly audit and review third-party plugins for security vulnerabilities, ensuring they follow best practices for data sanitization and input validation.
Educate users with administrative privileges on safe practices and the risks associated with storing untrusted data within the plugin settings.

Patching and Updates

Stay informed about security updates and patches released by plugin developers and promptly apply them to your WordPress site to address known vulnerabilities and enhance overall security posture. Regularly monitoring security advisories and maintaining up-to-date software is crucial in proactively addressing potential threats like CVE-2023-2223.