CVE-2018-20916 Explained : Impact and Mitigation
Learn about CVE-2018-20916, a Stored XSS vulnerability in cPanel versions prior to 70.0.23 through WHM Edit MX Entry. Find out the impact, affected systems, exploitation, and mitigation steps.
Stored XSS can occur in cPanel versions prior to 70.0.23 through a WHM Edit MX Entry (SEC-370) vulnerability.
Understanding CVE-2018-20916
cPanel before 70.0.23 allows Stored XSS via a WHM Edit MX Entry (SEC-370).
What is CVE-2018-20916?
This CVE refers to a Stored Cross-Site Scripting (XSS) vulnerability present in cPanel versions earlier than 70.0.23, specifically through the WHM Edit MX Entry (SEC-370) feature.
The Impact of CVE-2018-20916
The 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-2018-20916
Vulnerability Description
Stored XSS can be exploited through the WHM Edit MX Entry functionality in cPanel versions before 70.0.23.
Affected Systems and Versions
- Product: cPanel
- Versions Affected: Prior to 70.0.23
Exploitation Mechanism
The vulnerability can be exploited by injecting malicious scripts into the WHM Edit MX Entry fields.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade cPanel to version 70.0.23 or later to mitigate the vulnerability.
- Regularly monitor for any suspicious activities on the cPanel platform.
Long-Term Security Practices
- Educate users on safe browsing habits and the importance of not clicking on suspicious links.
- Implement web application firewalls and security plugins to enhance overall security.
Patching and Updates
- Stay informed about security updates and patches released by cPanel and apply them promptly to ensure system security.