CVE-2018-20910 : What You Need to Know

In versions of cPanel prior to 70.0.23, there is a vulnerability that enables self cross-site scripting (XSS) within the WHM cPAddons showsecurity Interface (SEC-357).

Understanding CVE-2018-20910

This CVE identifies a self XSS vulnerability in cPanel versions before 70.0.23, specifically within the WHM cPAddons showsecurity Interface (SEC-357).

What is CVE-2018-20910?

cPanel before version 70.0.23 is susceptible to self cross-site scripting (XSS) in the WHM cPAddons showsecurity Interface (SEC-357).

The Impact of CVE-2018-20910

The vulnerability allows attackers to execute malicious scripts in the context of the user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2018-20910

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The vulnerability in cPanel versions prior to 70.0.23 enables self XSS within the WHM cPAddons showsecurity Interface (SEC-357).

Affected Systems and Versions

Affected Product: cPanel
Affected Versions: Prior to 70.0.23

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the WHM cPAddons showsecurity Interface, potentially compromising user sessions.

Mitigation and Prevention

To address CVE-2018-20910, follow these mitigation strategies:

Immediate Steps to Take

Update cPanel to version 70.0.23 or later to patch the vulnerability.
Regularly monitor for security advisories and apply updates promptly.

Long-Term Security Practices

Educate users on safe browsing habits to prevent XSS attacks.
Implement web application firewalls to filter and block malicious traffic.

Patching and Updates

Stay informed about security updates from cPanel and apply patches as soon as they are available.