CVE-2020-8839 Cross-site scripting in n/a
Stored XSS in CHIYU BF-430 TCP/IP converters allows attackers to inject scripts via the TF_submask field, potentially compromising device integrity.
- 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-2020-8839?
CVE-2020-8839 is a medium-severity cross-site scripting vulnerability in n/a, published on 12 Feb 2020. 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
Stored XSS was discovered on CHIYU BF-430 232/485 TCP/IP Converter devices before 1.16.00, as demonstrated by the /if.cgi TF_submask field.
Weakness: CWE-79
Which versions are affected by CVE-2020-8839?
It affects 1 product.
Products include Chiyu-T Bf-430 Firmware.
How do I fix CVE-2020-8839?
No fix has been published for CVE-2020-8839 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-2020-8839 being exploited?
There is no known exploitation of CVE-2020-8839 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry.
Sources
Also known as GHSA-f9xg-xghh-pw98.