CVE-2022-4838 : Security Advisory and Response

A Stored Cross-Site Scripting (XSS) vulnerability has been identified in the Clean Login WordPress plugin version 1.13.7 and below. This vulnerability could allow low-privileged users to execute XSS attacks targeting high-privileged users.

Understanding CVE-2022-4838

This section will delve into the impact, technical details, and mitigation strategies related to CVE-2022-4838.

What is CVE-2022-4838?

The Clean Login WordPress plugin, prior to version 1.13.7, fails to properly validate and escape certain shortcode attributes. This oversight enables contributors and higher roles to launch Stored XSS attacks, posing a severe security risk.

The Impact of CVE-2022-4838

The vulnerability permits malevolent contributors to execute arbitrary script code within the context of the site, compromising the integrity and confidentiality of privileged data.

Technical Details of CVE-2022-4838

Let's explore the specifics of the vulnerability.

Vulnerability Description

The Clean Login plugin's inadequate input validation and sanitization mechanisms facilitate contributors to embed malicious scripts within shortcodes, culminating in XSS exploitation.

Affected Systems and Versions

Users utilizing Clean Login versions prior to 1.13.7 are susceptible to this security flaw, emphasizing the significance of immediate updates.

Exploitation Mechanism

By leveraging the vulnerability, attackers with contributor privileges can inject harmful scripts via shortcodes, paving the way for unauthorized data access and manipulation.

Mitigation and Prevention

Discover the essential steps to mitigate the risk posed by CVE-2022-4838.

Immediate Steps to Take

Update Clean Login plugin to version 1.13.7 or higher to patch the XSS vulnerability.
Limit contributor access to minimize the impact of potential attacks.

Long-Term Security Practices

Regularly audit and update plugins to mitigate emerging security risks.
Educate users about best practices to prevent XSS attacks and enhance overall website security.

Patching and Updates

Stay informed about security patches and promptly apply updates to fortify your WordPress site against evolving threats.