CVE-2021-4227 : Vulnerability Insights and Analysis

Ark Comment Editor <= 2.15.6 - Iframe Injection via Comment

Understanding CVE-2021-4227

The Ark Comment Editor WordPress plugin version 2.15.6 and below is susceptible to an iframe injection vulnerability via comments.

What is CVE-2021-4227?

The CVE-2021-4227 vulnerability in the ark-commenteditor plugin allows attackers to inject an iFrame in the page through the Source editor, enabling them to load arbitrary content to the comment section.

The Impact of CVE-2021-4227

This vulnerability could be exploited by malicious actors to execute cross-site scripting (XSS) attacks, potentially leading to unauthorized actions or data theft on affected websites.

Technical Details of CVE-2021-4227

The following technical details outline the vulnerability.

Vulnerability Description

The ark-commenteditor WordPress plugin version 2.15.6 and below fails to properly sanitize or encode comments in the Source editor, allowing unauthorized iFrame injections.

Affected Systems and Versions

Vendor: Unknown Product: ark-commenteditor Versions Affected: 0 - 2.15.6

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious iFrames in comments, posing a risk of loading arbitrary content from any page.

Mitigation and Prevention

Protect your website from potential exploitation by following these mitigation and prevention strategies.

Immediate Steps to Take

Disable the Ark Comment Editor WordPress plugin if not essential.
Regularly monitor for any suspicious activities on the comment sections of your website.

Long-Term Security Practices

Ensure all plugins are regularly updated to the latest secure versions.
Educate users and administrators about safe commenting practices.

Patching and Updates

Refer to the official WordPress plugin repository for updates and patches to secure your website against CVE-2021-4227.