CVE-2020-21733 Cross-site scripting in n/a
Cross-site scripting vulnerability in Sagemcom F@ST3686 routers allows attackers to inject malicious scripts via specific diagnostic and configuration pages.
- 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-2020-21733?
CVE-2020-21733 is a medium-severity cross-site scripting vulnerability in n/a, published on 14 Sep 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
Sagemcom F@ST3686 v1.0 HUN 3.97.0 has XSS via RgDiagnostics.asp, RgDdns.asp, RgFirewallEL.asp, RgVpnL2tpPptp.asp.
Weakness: CWE-79
Which versions are affected by CVE-2020-21733?
It affects 1 product.
Products include Sagemcom F\@st 3686 Firmware.
How do I fix CVE-2020-21733?
No fix has been published for CVE-2020-21733 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-2020-21733 being exploited?
There is no known exploitation of CVE-2020-21733 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-jq52-3fww-m362.