CVE-2019-25084 : Exploit Details and Defense Strategies

CVE-2019-25084, also known as Hide Files on GitHub options.js addEventListener cross site scripting, is a vulnerability affecting the GitHub Hide Files extension.

Understanding CVE-2019-25084

This CVE identifies a cross-site scripting vulnerability in the Hide Files on GitHub extension.

What is CVE-2019-25084?

The vulnerability exists in the addEventListener function within the file extension/options.js file of the Hide Files on GitHub extension, making it susceptible to cross-site scripting attacks.

The Impact of CVE-2019-25084

The vulnerability allows for remote attackers to execute malicious scripts on the target system, potentially leading to unauthorized access or data theft.

Technical Details of CVE-2019-25084

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability arises from improper input validation in the addEventListener function, enabling attackers to inject and execute malicious scripts.

Affected Systems and Versions

Vendor: n/a
Product: Hide Files on GitHub
Affected Versions: Up to version 2.x

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating unknown data to execute cross-site scripting attacks remotely.

Mitigation and Prevention

Protect your systems from CVE-2019-25084 with the following steps:

Immediate Steps to Take

Upgrade the Hide Files on GitHub extension to version 3.0.0
Apply the patch associated with the upgrade (9de0c57df81db1178e0e79431d462f6d9842742e)

Long-Term Security Practices

Regularly update software and extensions to the latest versions
Implement input validation and sanitization to prevent XSS vulnerabilities
Conduct security audits and penetration testing to identify and address potential weaknesses
Educate users on safe browsing practices and the risks of executing unknown scripts
Monitor network traffic for suspicious activities

Patching and Updates

Ensure timely installation of patches and updates provided by the software vendor to address security vulnerabilities.