CVE-2017-18402 : Vulnerability Insights and Analysis

A security vulnerability was identified in versions of cPanel prior to 68.0.15. This vulnerability could potentially lead to stored XSS attacks during a moderated upgrade of cpaddons (CVE-2020-22317).

Understanding CVE-2017-18402

cPanel before 68.0.15 allows stored XSS during a cpaddons moderated upgrade (SEC-336).

What is CVE-2017-18402?

cPanel versions before 68.0.15 are susceptible to stored XSS attacks during a cpaddons moderated upgrade.

The Impact of CVE-2017-18402

This vulnerability could be exploited to execute malicious scripts, potentially leading to unauthorized access or data theft.

Technical Details of CVE-2017-18402

Vulnerability Description

The vulnerability in cPanel versions prior to 68.0.15 allows for stored XSS attacks during a cpaddons moderated upgrade.

Affected Systems and Versions

Affected System: cPanel versions before 68.0.15
Vulnerable Version: cPanel prior to 68.0.15

Exploitation Mechanism

The vulnerability can be exploited during a moderated upgrade of cpaddons, enabling attackers to inject and execute malicious scripts.

Mitigation and Prevention

Immediate Steps to Take

Upgrade cPanel to version 68.0.15 or later to mitigate the vulnerability.
Regularly monitor and audit the system for any unauthorized changes or activities.

Long-Term Security Practices

Implement strict input validation to prevent XSS attacks.
Educate users on safe browsing habits and the importance of not clicking on suspicious links.

Patching and Updates

Stay informed about security updates and patches released by cPanel.
Apply patches promptly to ensure the system is protected against known vulnerabilities.