CVE-2017-18473 : Security Advisory and Response

Versions of cPanel prior to 62.0.4 are susceptible to a self XSS vulnerability on the webmail Password and Security page (SEC-199).

Understanding CVE-2017-18473

cPanel before 62.0.4 allows self XSS on the webmail Password and Security page (SEC-199).

What is CVE-2017-18473?

CVE-2017-18473 is a vulnerability in cPanel versions prior to 62.0.4 that exposes users to a self XSS risk on the webmail Password and Security page (SEC-199).

The Impact of CVE-2017-18473

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

Technical Details of CVE-2017-18473

Vulnerability Description

Versions of cPanel before 62.0.4 are prone to a self XSS vulnerability on the webmail Password and Security page (SEC-199).

Affected Systems and Versions

Product: cPanel
Vendor: Not applicable
Versions affected: All versions prior to 62.0.4

Exploitation Mechanism

The vulnerability can be exploited by tricking a user into clicking on a specially crafted link that executes malicious scripts within the user's session.

Mitigation and Prevention

Immediate Steps to Take

Upgrade cPanel to version 62.0.4 or later to mitigate the vulnerability.
Educate users about the risks of clicking on unknown or suspicious links.

Long-Term Security Practices

Regularly update and patch cPanel installations to protect against known vulnerabilities.
Implement security awareness training for users to recognize and avoid social engineering attacks.

Patching and Updates

Ensure that cPanel installations are regularly updated to the latest versions to address security vulnerabilities.