CVE-2019-5938 : Security Advisory and Response

Cybozu Garoon versions 4.0.0 to 4.10.1 are vulnerable to a cross-site scripting (XSS) attack through the 'Mail' application, allowing remote attackers to inject malicious web scripts or HTML.

Understanding CVE-2019-5938

This CVE entry identifies a security flaw in Cybozu Garoon versions 4.0.0 to 4.10.1 that can be exploited by attackers to execute XSS attacks.

What is CVE-2019-5938?

CVE-2019-5938 is a cross-site scripting vulnerability in Cybozu Garoon versions 4.0.0 to 4.10.1, enabling remote threat actors to insert arbitrary web scripts or HTML via the 'Mail' application.

The Impact of CVE-2019-5938

The vulnerability poses a risk of unauthorized script injection, potentially leading to data theft, unauthorized access, or other malicious activities.

Technical Details of CVE-2019-5938

Cybozu Garoon's XSS vulnerability in versions 4.0.0 to 4.10.1 has the following technical aspects:

Vulnerability Description

Allows remote attackers to perform cross-site scripting attacks

Affected Systems and Versions

Product: Cybozu Garoon
Vendor: Cybozu, Inc.
Vulnerable Versions: 4.0.0 to 4.10.1

Exploitation Mechanism

Attackers can exploit the vulnerability through the 'Mail' application to inject malicious web scripts or HTML.

Mitigation and Prevention

To address CVE-2019-5938 and enhance security measures, consider the following steps:

Immediate Steps to Take

Update Cybozu Garoon to a non-vulnerable version
Implement input validation mechanisms to prevent script injection
Educate users on safe browsing practices

Long-Term Security Practices

Regularly monitor and audit web applications for vulnerabilities
Conduct security training for developers and IT staff
Employ web application firewalls to detect and block malicious traffic

Patching and Updates

Apply patches and updates provided by Cybozu, Inc. to fix the XSS vulnerability