CVE-2022-2823 : Security Advisory and Response

A Stored Cross Site Scripting vulnerability has been identified in the Slider, Gallery, and Carousel by MetaSlider WordPress plugin before version 3.27.9. This CVE allows high privilege users, such as admin, to execute malicious scripts, posing a security risk.

Understanding CVE-2022-2823

In this section, we will delve into the details of CVE-2022-2823 regarding the Slider, Gallery, and Carousel by MetaSlider WordPress plugin.

What is CVE-2022-2823?

The Slider, Gallery, and Carousel by MetaSlider plugin prior to version 3.27.9 fails to properly sanitize and escape certain Gallery Image parameters, leaving room for Stored Cross-Site Scripting attacks by privileged users.

The Impact of CVE-2022-2823

The vulnerability presents a significant risk as it enables high privilege users to execute malicious scripts, even if restrictions like unfiltered_html capability disallow it.

Technical Details of CVE-2022-2823

Let's explore the technical aspects associated with CVE-2022-2823 for better comprehension.

Vulnerability Description

The vulnerability in the Slider, Gallery, and Carousel by MetaSlider plugin allows for Stored Cross-Site Scripting attacks by admin users due to inadequate sanitization of Gallery Image parameters.

Affected Systems and Versions

The affected system includes the Slider, Gallery, and Carousel by MetaSlider - Responsive WordPress Plugin versions less than 3.27.9.

Exploitation Mechanism

Exploiting the vulnerability requires the execution of malicious scripts through the compromised Gallery Image parameters by high privilege users.

Mitigation and Prevention

To address and prevent the risks associated with CVE-2022-2823, immediate actions and long-term security measures are crucial.

Immediate Steps to Take

Update the Slider, Gallery, and Carousel by MetaSlider WordPress plugin to version 3.27.9 or higher to mitigate the vulnerability.
Monitor and restrict high privilege users' actions to minimize the threat of Stored Cross-Site Scripting attacks.

Long-Term Security Practices

Implement secure coding practices, including adequate input validation and output encoding, to prevent similar vulnerabilities in the future.

Patching and Updates

Regularly check for security updates and patches released by the plugin developers to stay protected against known vulnerabilities.