CVE-2018-6842 : Vulnerability Insights and Analysis

Kentico versions prior to 10.0.50 and 11 versions prior to 11.0.3 have a cross-site scripting (XSS) vulnerability that allows improper construction of system pages when a malicious URL is crafted.

Understanding CVE-2018-6842

This CVE involves a security vulnerability in Kentico versions that could be exploited through cross-site scripting.

What is CVE-2018-6842?

CVE-2018-6842 is a cross-site scripting (XSS) vulnerability found in Kentico versions before 10.0.50 and 11 versions before 11.0.3. It enables attackers to manipulate URLs to construct system pages incorrectly.

The Impact of CVE-2018-6842

This vulnerability could allow malicious actors to execute arbitrary scripts in the context of a user's browser, potentially leading to various attacks such as data theft, session hijacking, or defacement of web pages.

Technical Details of CVE-2018-6842

Kentico XSS Vulnerability

Vulnerability Description

The XSS vulnerability in Kentico versions prior to 10.0.50 and 11 versions before 11.0.3 allows attackers to inject and execute malicious scripts by manipulating URLs, leading to improper system page construction.

Affected Systems and Versions

Kentico versions before 10.0.50
Kentico 11 versions before 11.0.3

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting URLs with malicious scripts, tricking the system into incorrectly constructing pages and executing the injected code.

Mitigation and Prevention

Protecting against CVE-2018-6842

Immediate Steps to Take

Update Kentico to versions 10.0.50 or 11.0.3 or later to patch the XSS vulnerability.
Implement input validation and output encoding to mitigate XSS risks.

Long-Term Security Practices

Regularly monitor and audit web applications for vulnerabilities.
Educate developers on secure coding practices to prevent XSS attacks.

Patching and Updates

Apply security patches and updates provided by Kentico to address known vulnerabilities and enhance system security.