CVE-2019-19851 Explained : Impact and Mitigation

A vulnerability related to XSS Injection has been discovered in Sangoma FreePBX and PBXact versions 13, 14, and 15. It specifically affects the Debug/Test page of the Superfecta module.

Understanding CVE-2019-19851

This CVE identifies an XSS Injection vulnerability in Sangoma FreePBX and PBXact versions 13, 14, and 15, impacting the Superfecta module.

What is CVE-2019-19851?

This vulnerability allows attackers to inject malicious scripts into web pages viewed by other users.

The Impact of CVE-2019-19851

The vulnerability affects the Debug/Test page of the Superfecta module, potentially leading to unauthorized access and data theft.

Technical Details of CVE-2019-19851

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The XSS Injection vulnerability in Sangoma FreePBX and PBXact versions 13, 14, and 15 allows attackers to execute arbitrary scripts on the affected system.

Affected Systems and Versions

Sangoma FreePBX versions 13, 14, and 15
PBXact versions 13, 14, and 15
Superfecta module versions up to 13.0.4.7, 14.x up to 14.0.24, and 15.x up to 15.0.2.20

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the Debug/Test page of the Superfecta module, accessible through the admin/config.php?display=superfecta URI.

Mitigation and Prevention

Protect your systems from CVE-2019-19851 with the following measures:

Immediate Steps to Take

Disable access to the Debug/Test page of the Superfecta module
Apply security patches provided by Sangoma

Long-Term Security Practices

Regularly update and patch Sangoma FreePBX and PBXact installations
Implement web application firewalls to detect and block XSS attacks

Patching and Updates

Sangoma has released patches to address this vulnerability
Stay informed about security updates and apply them promptly