CVE-2019-14670 : What You Need to Know

Firefly III version 4.7.17.3 is vulnerable to a stored cross-site scripting (XSS) attack due to unfiltered user-supplied data in the bill name field.

Understanding CVE-2019-14670

This CVE identifies a security vulnerability in Firefly III version 4.7.17.3 that allows for a stored XSS attack.

What is CVE-2019-14670?

Firefly III version 4.7.17.3 is susceptible to a stored cross-site scripting (XSS) attack where JavaScript code can be executed due to inadequate filtering of user-supplied data in the bill name field.

The Impact of CVE-2019-14670

The vulnerability allows malicious actors to execute arbitrary JavaScript code when creating a rule from a bill, potentially leading to unauthorized access or data theft.

Technical Details of CVE-2019-14670

Firefly III version 4.7.17.3 vulnerability details.

Vulnerability Description

Firefly III 4.7.17.3 is vulnerable to stored XSS due to unfiltered user-supplied data in the bill name field.

Affected Systems and Versions

Product: Firefly III
Version: 4.7.17.3

Exploitation Mechanism

Attackers can exploit the vulnerability by injecting malicious JavaScript code into the bill name field, leading to code execution during rule creation.

Mitigation and Prevention

Protect your system from CVE-2019-14670.

Immediate Steps to Take

Update Firefly III to a patched version that addresses the XSS vulnerability.
Avoid inputting untrusted data into the bill name field.

Long-Term Security Practices

Implement input validation and output encoding to prevent XSS attacks.
Regularly monitor and audit user input to detect and mitigate security risks.

Patching and Updates

Stay informed about security updates for Firefly III and promptly apply patches to address known vulnerabilities.