CVE-2022-0840 : What You Need to Know

Easy Social Icons WordPress plugin before version 3.2.1 is vulnerable to stored Cross-Site Scripting (XSS) attack. Exploiting this vulnerability allows high privileged users to inject arbitrary JavaScript.

Understanding CVE-2022-0840

This CVE involves a security flaw in the Easy Social Icons WordPress plugin that could be exploited by high privileged users.

What is CVE-2022-0840?

The Easy Social Icons plugin, when used before version 3.2.1, fails to properly escape the image_file field when adding a new social icon. This oversight enables users to insert malicious JavaScript code even when the unfiltered_html capability is disabled.

The Impact of CVE-2022-0840

This vulnerability poses a significant risk as it allows attackers to execute arbitrary JavaScript code on affected websites, potentially leading to Cross-Site Scripting attacks and unauthorized data access.

Technical Details of CVE-2022-0840

Below are the technical details associated with CVE-2022-0840.

Vulnerability Description

The vulnerability stems from inadequate input validation in the Easy Social Icons plugin, making it possible for attackers to inject and execute malicious scripts within the plugin environment.

Affected Systems and Versions

Easy Social Icons versions earlier than 3.2.1 are impacted by this vulnerability. Users who have not updated their plugins to version 3.2.1 or higher are at risk.

Exploitation Mechanism

High privileged users can abuse this vulnerability by inserting crafted JavaScript code within the image_file field while adding a new social icon through the Easy Social Icons plugin interface.

Mitigation and Prevention

Protecting systems from CVE-2022-0840 involves both immediate steps and long-term security practices.

Immediate Steps to Take

Immediately update the Easy Social Icons plugin to version 3.2.1 or higher to patch the vulnerability.
Regularly monitor and audit user-generated content on your website to identify and remove any suspicious scripts.

Long-Term Security Practices

Enforce least privilege access controls to restrict user capabilities and reduce the impact of potential malicious activities.
Educate users on safe coding practices and the risks associated with injecting untrusted scripts into websites.

Patching and Updates

Stay informed about security updates provided by the plugin vendor and promptly apply patches to ensure the safety and integrity of your WordPress website.