CVE-2018-20884 : Exploit Details and Defense Strategies
Learn about CVE-2018-20884, a stored XSS vulnerability in cPanel versions prior to 74.0.0. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
Versions of cPanel prior to 74.0.0 are susceptible to a stored cross-site scripting (XSS) vulnerability in the WHM File Restoration interface (SEC-367).
Understanding CVE-2018-20884
cPanel before 74.0.0 allows stored XSS in the WHM File Restoration interface (SEC-367).
What is CVE-2018-20884?
This CVE refers to a stored cross-site scripting (XSS) vulnerability found in versions of cPanel before 74.0.0, specifically affecting the WHM File Restoration interface (SEC-367).
The Impact of CVE-2018-20884
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-2018-20884
Vulnerability Description
The vulnerability exists in the WHM File Restoration interface of cPanel, enabling the storage of malicious scripts that can be executed within a user's session.
Affected Systems and Versions
- Product: cPanel
- Versions Affected: Prior to 74.0.0
Exploitation Mechanism
The vulnerability can be exploited by an attacker to inject and store malicious scripts in the WHM File Restoration interface, which may be executed when accessed by a user.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade cPanel to version 74.0.0 or newer to mitigate the vulnerability.
- Regularly monitor and audit user sessions for any suspicious activities.
Long-Term Security Practices
- Implement strict input validation mechanisms to prevent XSS attacks.
- Educate users on safe browsing practices and the importance of not clicking on suspicious links.
Patching and Updates
Ensure timely installation of security patches and updates provided by cPanel to address known vulnerabilities.