CVE-2019-14672 : Vulnerability Insights and Analysis

Firefly III version 4.7.17.5 has a security vulnerability that can lead to stored cross-site scripting (XSS) attacks. This vulnerability arises from inadequate filtering of user-provided data in the liability name field, allowing the execution of JavaScript code under certain conditions.

Understanding CVE-2019-14672

This CVE entry pertains to a specific security flaw in Firefly III version 4.7.17.5 that exposes users to XSS attacks.

What is CVE-2019-14672?

CVE-2019-14672 highlights a vulnerability in Firefly III 4.7.17.5 that enables stored XSS due to insufficient filtration of user-supplied data in the liability name field. This can trigger the execution of JavaScript code during visits to the account show page.

The Impact of CVE-2019-14672

The vulnerability in Firefly III version 4.7.17.5 can have the following impacts:

Malicious actors may execute arbitrary JavaScript code on the victim's browser.
Attackers can potentially steal sensitive user information or perform unauthorized actions on behalf of the user.

Technical Details of CVE-2019-14672

This section delves into the technical aspects of the CVE, including the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The security flaw in Firefly III 4.7.17.5 allows for stored XSS attacks by failing to properly filter user-input in the liability name field, leading to the execution of JavaScript code.

Affected Systems and Versions

Affected Version: Firefly III 4.7.17.5
Systems: Firefly III instances running version 4.7.17.5 are vulnerable to this exploit.

Exploitation Mechanism

The vulnerability can be exploited by injecting malicious code into the liability name field, triggering the execution of the injected JavaScript code when an error condition occurs on the account show page.

Mitigation and Prevention

To address CVE-2019-14672 and enhance overall security, consider the following mitigation strategies:

Immediate Steps to Take

Update Firefly III to a patched version that addresses the XSS vulnerability.
Implement input validation and output encoding to prevent XSS attacks.

Long-Term Security Practices

Regularly audit and review code for security vulnerabilities.
Educate developers on secure coding practices to mitigate XSS risks.

Patching and Updates

Stay informed about security updates and patches released by Firefly III.
Promptly apply patches to ensure protection against known vulnerabilities.