CVE-2018-20928 : Security Advisory and Response

A vulnerability in cPanel versions prior to 70.0.23 allows for stored cross-site scripting attacks through the cpaddons vendor interface (identified as SEC-391).

Understanding CVE-2018-20928

This CVE refers to a specific vulnerability in cPanel software that could lead to stored cross-site scripting attacks.

What is CVE-2018-20928?

cPanel versions before 70.0.23 are susceptible to stored XSS attacks via the cpaddons vendor interface (SEC-391).

The Impact of CVE-2018-20928

This vulnerability could allow an attacker to execute malicious scripts in the context of a user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2018-20928

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability in cPanel before version 70.0.23 enables stored XSS through the cpaddons vendor interface (SEC-391).

Affected Systems and Versions

Product: cPanel
Vendor: cPanel
Versions Affected: Prior to 70.0.23

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the cpaddons vendor interface, leading to stored cross-site scripting attacks.

Mitigation and Prevention

Protecting systems from CVE-2018-20928 is crucial to maintaining security.

Immediate Steps to Take

Update cPanel to version 70.0.23 or later to mitigate the vulnerability.
Regularly monitor and audit vendor interfaces for any suspicious activities.

Long-Term Security Practices

Implement strict input validation to prevent XSS attacks.
Educate users on safe browsing practices to minimize the risk of executing malicious scripts.

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.