CVE-2022-3838 : Security Advisory and Response

WordPress plugin WPUpper Share Buttons <= 3.42 is vulnerable to Stored Cross-Site Scripting (XSS) attacks, potentially allowing high-privileged users to execute malicious scripts.

Understanding CVE-2022-3838

This section provides insights into the impact and technical details of CVE-2022-3838.

What is CVE-2022-3838?

The WPUpper Share Buttons plugin version <= 3.42 fails to properly sanitize its settings, enabling admin users to carry out Stored XSS attacks.

The Impact of CVE-2022-3838

The vulnerability could be exploited by high-privileged users, such as admins, even in scenarios where unfiltered_html capabilities are restricted, leading to potential XSS attacks.

Technical Details of CVE-2022-3838

Explore the specifics of the vulnerability including its description, affected systems, and exploitation mechanism.

Vulnerability Description

The WPUpper Share Buttons WordPress plugin through version 3.42 lacks proper sanitization and escaping of certain settings, facilitating Stored Cross-Site Scripting attacks.

Affected Systems and Versions

Vendor: Unknown Product: WPUpper Share Buttons Versions Affected: <= 3.42 For more information, visit WordPress Plugins.

Exploitation Mechanism

Admin users could leverage the vulnerability to inject malicious scripts, despite restrictions on unfiltered_html capability, especially in multisite configurations.

Mitigation and Prevention

Discover immediate actions to mitigate the risk and secure your systems from CVE-2022-3838.

Immediate Steps to Take

Update the WPUpper Share Buttons plugin to a secure version and sanitize user inputs to prevent XSS vulnerabilities.

Long-Term Security Practices

Regularly audit plugins for security flaws and follow security best practices to minimize the risk of XSS attacks.

Patching and Updates

Stay informed about security patches and updates for the WPUpper Share Buttons plugin to ensure protection against known vulnerabilities.