CVE-2019-16975 : What You Need to Know

This CVE-2019-16975 article provides insights into a cross-site scripting vulnerability in FusionPBX versions prior to 4.5.7.

Understanding CVE-2019-16975

This section delves into the details of the vulnerability and its impact.

What is CVE-2019-16975?

The vulnerability in FusionPBX versions before 4.5.7 arises from unsanitized user input, leading to a cross-site scripting (XSS) risk.

The Impact of CVE-2019-16975

The XSS vulnerability allows attackers to inject malicious scripts into web pages viewed by other users, potentially compromising sensitive data.

Technical Details of CVE-2019-16975

Explore the technical aspects of the vulnerability.

Vulnerability Description

The flaw exists in the file app\contacts\contact_notes.php, where the "id" variable from the URL is not sanitized, enabling XSS attacks.

Affected Systems and Versions

FusionPBX versions prior to 4.5.7

Exploitation Mechanism

Attackers exploit the unsanitized "id" variable in the URL to inject malicious scripts into the HTML, compromising user data.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2019-16975.

Immediate Steps to Take

Update FusionPBX to version 4.5.7 or later to patch the vulnerability.
Implement input validation to sanitize user input and prevent XSS attacks.

Long-Term Security Practices

Regularly monitor and audit web applications for vulnerabilities.
Educate developers on secure coding practices to prevent similar issues in the future.

Patching and Updates

Stay informed about security updates and apply patches promptly to protect against known vulnerabilities.