CVE-2019-9838 : Security Advisory and Response

VFront 0.99.5 has a stored XSS vulnerability in the admin/sync_reg_tab.php file, leading to potential security risks.

Understanding CVE-2019-9838

This CVE identifies a specific security issue in VFront 0.99.5 that could be exploited by attackers.

What is CVE-2019-9838?

The version 0.99.5 of VFront is susceptible to stored XSS due to mishandling of the azzera parameter during the rendering process in admin/error_log.php.

The Impact of CVE-2019-9838

This vulnerability could allow malicious actors to execute arbitrary scripts in the context of an admin user, potentially compromising sensitive data and user information.

Technical Details of CVE-2019-9838

VFront 0.99.5's vulnerability is further detailed below.

Vulnerability Description

The stored XSS vulnerability arises from improper handling of the azzera parameter in the admin/sync_reg_tab.php file during rendering in admin/error_log.php.

Affected Systems and Versions

Product: VFront
Version: 0.99.5

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the azzera parameter, which are then executed when the error_log.php file is rendered.

Mitigation and Prevention

Protecting systems from CVE-2019-9838 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable or restrict access to the affected admin functionalities in VFront 0.99.5.
Implement input validation and output encoding to prevent XSS attacks.

Long-Term Security Practices

Regularly update VFront to the latest secure version.
Conduct security audits and penetration testing to identify and address vulnerabilities.

Patching and Updates

Apply patches or security updates provided by VFront to address the XSS vulnerability and enhance overall system security.