CVE-2023-5048 : Security Advisory and Response

This CVE-2023-5048 involves a vulnerability in the WDContactFormBuilder plugin for WordPress, allowing for Stored Cross-Site Scripting attacks in versions up to and including 1.0.72. Attackers with contributor-level permissions or higher can inject malicious web scripts via the 'Contact_Form_Builder' shortcode due to inadequate input sanitization and output escaping on the 'id' attribute.

Understanding CVE-2023-5048

This section delves deeper into the nature of CVE-2023-5048 and its impact on affected systems.

What is CVE-2023-5048?

CVE-2023-5048 is a vulnerability found in the WDContactFormBuilder plugin for WordPress, which can be exploited by authenticated attackers to execute arbitrary web scripts on vulnerable pages.

The Impact of CVE-2023-5048

The impact of this vulnerability is significant as it allows attackers to manipulate user-accessible web pages with malicious scripts, potentially leading to unauthorized actions and data theft.

Technical Details of CVE-2023-5048

Understanding the technical aspects of CVE-2023-5048 can help in implementing effective mitigation strategies.

Vulnerability Description

The vulnerability arises from inadequate input sanitization and output escaping within the 'Contact_Form_Builder' shortcode, enabling attackers to inject harmful web scripts.

Affected Systems and Versions

The WDContactFormBuilder plugin versions up to and including 1.0.72 are vulnerable to this exploit, posing a risk to WordPress sites that have this plugin installed.

Exploitation Mechanism

By leveraging the vulnerability in the 'id' attribute of the 'Contact_Form_Builder' shortcode, attackers with certain permissions can insert and execute arbitrary scripts on compromised pages.

Mitigation and Prevention

Protecting systems from CVE-2023-5048 requires immediate actions and long-term security measures to avoid exploitation.

Immediate Steps to Take

Website administrators should deactivate or uninstall the affected WDContactFormBuilder plugin version (1.0.72 or lower) to prevent potential attacks until a patch is available.

Long-Term Security Practices

Implement robust input validation and output escaping practices within WordPress plugins to mitigate similar vulnerabilities in the future. Regular security audits and updates are essential to maintain a secure WordPress environment.

Patching and Updates

Stay informed about security updates and patches released by plugin developers. It is crucial to apply patches promptly to address known vulnerabilities and enhance the security posture of WordPress installations.