CVE-2020-28847 : Vulnerability Insights and Analysis

This CVE-2020-28847 article provides insights into a Cross Site Scripting (XSS) vulnerability in xCss Valine v1.4.14.

Understanding CVE-2020-28847

What is CVE-2020-28847?

CVE-2020-28847 is a Cross Site Scripting (XSS) vulnerability found in xCss Valine v1.4.14 through the nick parameter in /classes/Comment.

The Impact of CVE-2020-28847

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

Technical Details of CVE-2020-28847

Vulnerability Description

The XSS vulnerability in xCss Valine v1.4.14 enables attackers to inject and execute malicious scripts via the nick parameter in /classes/Comment.

Affected Systems and Versions

Affected Product: xCss Valine v1.4.14
Affected Version: Not applicable

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the nick parameter of /classes/Comment, which are then executed in the user's browser.

Mitigation and Prevention

Immediate Steps to Take

Disable the affected parameter or input field to prevent script injection.
Regularly monitor and sanitize user inputs to mitigate XSS risks.

Long-Term Security Practices

Implement input validation and output encoding to prevent XSS attacks.
Educate developers on secure coding practices to avoid similar vulnerabilities.

Patching and Updates

Apply patches or updates provided by the vendor to address the XSS vulnerability in xCss Valine v1.4.14.