CVE-2019-14668 : Security Advisory and Response
Learn about CVE-2019-14668 affecting Firefly III 4.7.17.3. Understand the stored XSS vulnerability, its impact, affected systems, exploitation mechanism, and mitigation steps.
Firefly III 4.7.17.3 is susceptible to a stored XSS vulnerability due to inadequate filtering of user-supplied data in the transaction description field.
Understanding CVE-2019-14668
This CVE involves a security issue in Firefly III 4.7.17.3 that allows for the execution of malicious JavaScript code during the deletion process of a transaction link.
What is CVE-2019-14668?
The vulnerability arises from the lack of proper filtration of user-provided data in the transaction description field, enabling stored XSS attacks.
The Impact of CVE-2019-14668
The stored XSS vulnerability in Firefly III 4.7.17.3 can lead to the execution of unauthorized JavaScript code, potentially compromising user data and system integrity.
Technical Details of CVE-2019-14668
Firefly III 4.7.17.3's vulnerability can be further understood through the following technical details:
Vulnerability Description
The absence of adequate filtering for user-provided data in the transaction description field exposes Firefly III 4.7.17.3 to stored XSS attacks, allowing malicious JavaScript code execution.
Affected Systems and Versions
- Product: Firefly III 4.7.17.3
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
The vulnerability permits threat actors to inject and execute JavaScript code during the deletion process of a transaction link in Firefly III 4.7.17.3.
Mitigation and Prevention
To address and prevent the risks associated with CVE-2019-14668, consider the following steps:
Immediate Steps to Take
- Implement input validation and output encoding to mitigate XSS vulnerabilities.
- Regularly monitor and audit user inputs to detect and prevent malicious code injection.
Long-Term Security Practices
- Conduct security training for developers to enhance awareness of secure coding practices.
- Employ web application firewalls (WAFs) to filter and block malicious traffic.
Patching and Updates
- Apply patches and updates provided by Firefly III to address the vulnerability and enhance system security.