CVE-2018-20915 : What You Need to Know

This CVE involves a vulnerability in cPanel versions prior to 70.0.23 that allows attackers to store and execute cross-site scripting (XSS) attacks through the WHM Edit DNS Zone action.

Understanding CVE-2018-20915

This CVE identifies a specific security issue in cPanel software.

What is CVE-2018-20915?

cPanel versions before 70.0.23 are susceptible to stored XSS attacks via the WHM Edit DNS Zone action (SEC-369).

The Impact of CVE-2018-20915

The vulnerability enables malicious actors to execute XSS attacks, potentially compromising the security and integrity of the affected systems.

Technical Details of CVE-2018-20915

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The issue in cPanel allows for the storage and execution of XSS attacks through the WHM Edit DNS Zone action (SEC-369).

Affected Systems and Versions

Product: cPanel
Vendor: Not applicable
Versions: All versions prior to 70.0.23

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating input fields in the WHM Edit DNS Zone action to store and execute malicious scripts.

Mitigation and Prevention

Protective measures to address and prevent exploitation of CVE-2018-20915.

Immediate Steps to Take

Upgrade cPanel to version 70.0.23 or later to mitigate the vulnerability.
Regularly monitor and audit DNS zone configurations for any unauthorized changes.

Long-Term Security Practices

Implement input validation mechanisms to sanitize user inputs and prevent XSS attacks.
Educate users and administrators on secure coding practices and the risks associated with XSS vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by cPanel.
Promptly apply patches to ensure the software is up-to-date and protected against known vulnerabilities.