CVE-2019-14670 Cross-site scripting in n/a

Medium 5.4 Published 5 Aug 2019 Updated 5 Aug 2024

Attackers can inject malicious scripts via bill names in Firefly III, leading to code execution or account takeover when rules are created.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2019-14670?

CVE-2019-14670 is a medium-severity cross-site scripting vulnerability in n/a, published on 5 Aug 2019. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Firefly III 4.7.17.3 is vulnerable to stored XSS due to the lack of filtration of user-supplied data in the bill name field. The JavaScript code is executed during rule-from-bill creation.

Weakness: CWE-79

Which versions are affected by CVE-2019-14670?

It affects 1 product.

Products include Firefly-Iii Firefly Iii.

How do I fix CVE-2019-14670?

No fix has been published for CVE-2019-14670 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2019-14670 being exploited?

There is no known exploitation of CVE-2019-14670 in the wild and no public exploit code.

Sources

Also known as GHSA-qr4w-v4fh-wx86.