CVE-2018-20791 Explained : Impact and Mitigation

Tecrail Responsive FileManager version 9.13.4 is vulnerable to cross-site scripting (XSS) attacks due to improper handling of media file uploads.

Understanding CVE-2018-20791

This CVE entry highlights a security vulnerability in Tecrail Responsive FileManager version 9.13.4 that can be exploited for XSS attacks.

What is CVE-2018-20791?

The vulnerability in version 9.13.4 of Tecrail Responsive FileManager allows attackers to execute cross-site scripting attacks by uploading a media file with an XSS payload in its name.

The Impact of CVE-2018-20791

The XSS vulnerability can lead to unauthorized access, data theft, and potential manipulation of content on affected systems.

Technical Details of CVE-2018-20791

This section delves into the technical aspects of the CVE.

Vulnerability Description

Improper handling of the "media_preview" action in Tecrail Responsive FileManager version 9.13.4 allows for XSS attacks through malicious media file uploads.

Affected Systems and Versions

Affected Version: 9.13.4
Systems running Tecrail Responsive FileManager version 9.13.4 are vulnerable to this XSS exploit.

Exploitation Mechanism

Attackers can exploit this vulnerability by uploading a media file with an XSS payload in its name, taking advantage of the mishandling of the "media_preview" action.

Mitigation and Prevention

Protecting systems from CVE-2018-20791 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Tecrail Responsive FileManager to a patched version that addresses the XSS vulnerability.
Implement input validation mechanisms to sanitize user-uploaded file names.

Long-Term Security Practices

Regularly monitor and audit file upload functionalities for security vulnerabilities.
Educate users on safe file upload practices to prevent XSS attacks.

Patching and Updates

Apply security patches provided by Tecrail for Responsive FileManager to mitigate the XSS vulnerability.