CVE-2021-4035 : What You Need to Know

A stored cross-site scripting vulnerability was discovered in Wocu Monitoring, a product by A3Sec. The vulnerability exists due to an obsolete version of the tinymce editor, allowing attackers with sufficient privileges to view and edit reports to execute malicious scripts.

Understanding CVE-2021-4035

This section provides insights into the impact, technical details, and mitigation strategies related to the CVE-2021-4035 vulnerability.

What is CVE-2021-4035?

The CVE-2021-4035 involves a stored cross-site scripting issue in Wocu Monitoring, arising from the use of an outdated tinymce editor. Attackers can exploit this flaw with authorized access to inject and execute malicious scripts.

The Impact of CVE-2021-4035

The vulnerability poses a low severity risk, with the need for high privileges to execute attacks. However, successful exploitation can lead to unauthorized script execution within the report creation comments section.

Technical Details of CVE-2021-4035

Explore the specifics of the vulnerability, including the description, affected systems, versions, and exploitation mechanisms.

Vulnerability Description

A stored cross-site scripting flaw in Wocu Monitoring enables attackers to embed malicious scripts within the comments section of report creation, leveraging an outdated tinymce editor.

Affected Systems and Versions

The vulnerability impacts Wocu Monitoring version 0.27, and versions prior to 48.2, requiring prompt updates to prevent exploitation.

Exploitation Mechanism

To exploit CVE-2021-4035, threat actors need authenticated access with elevated privileges to manipulate report comments, potentially leading to unauthorized script execution.

Mitigation and Prevention

Discover effective strategies to address and mitigate the risks associated with CVE-2021-4035.

Immediate Steps to Take

Organizations should update Wocu Monitoring to version 48.2 or above, promptly addressing the stored cross-site scripting vulnerability and enhancing system security.

Long-Term Security Practices

Implement regular security audits, stay informed about software updates, and educate users on secure report creation practices to prevent future XSS risks.

Patching and Updates

Regularly monitor vendor security advisories, apply patches promptly, and maintain secure configurations to safeguard against evolving vulnerabilities.