CVE-2019-9673 Cross-site scripting in n/a
Attackers can execute arbitrary JavaScript in Freenet clients via crafted URIs due to a MIME type bypass.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-9673?
CVE-2019-9673 is a high-severity cross-site scripting vulnerability in n/a, published on 5 Jun 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Freenet 1483 has a MIME type bypass that allows arbitrary JavaScript execution via a crafted Freenet URI.
Weakness: CWE-19
Which versions are affected by CVE-2019-9673?
It affects 1 product.
Products include Freenetproject Freenet.
How do I fix CVE-2019-9673?
No fix has been published for CVE-2019-9673 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-2019-9673 being exploited?
There is no known exploitation of CVE-2019-9673 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-88g5-9vv4-hv3p.