CVE-2021-3279 Cross-site scripting in n/a
Attackers can inject malicious scripts into the message box of sz.chat, potentially executing code or stealing data from other users.
- 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-2021-3279?
CVE-2021-3279 is a medium-severity cross-site scripting vulnerability in n/a, published on 19 Jul 2021. 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
sz.chat version 4 allows injection of web scripts and HTML in the message box.
Weakness: CWE-79
Which versions are affected by CVE-2021-3279?
It affects 1 product.
Products include Fortics Szchat.
How do I fix CVE-2021-3279?
No fix has been published for CVE-2021-3279 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-2021-3279 being exploited?
There is no known exploitation of CVE-2021-3279 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-8rfj-4jpm-266m.