CVE-2020-36905 FIBARO System Home Center 5.021 Remote File Inclusion via Proxy API
Attackers can inject malicious JavaScript via the proxy API to hijack user sessions or manipulate page content in FIBARO Home Center devices.
- 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-2020-36905?
CVE-2020-36905 is a medium-severity cross-site scripting vulnerability in FIBAR GROUP S.A. Home Center 2, published on 6 Jan 2026. 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
FIBARO System Home Center 5.021 contains a remote file inclusion vulnerability in the undocumented proxy API that allows attackers to include arbitrary client-side scripts. Attackers can exploit the 'url' GET parameter to inject malicious JavaScript and potentially hijack user sessions or manipulate page content.
Weakness: CWE-829
Which versions are affected by CVE-2020-36905?
How do I fix CVE-2020-36905?
No fix has been published for CVE-2020-36905 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-2020-36905 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36905 exists.
Sources
Also known as GHSA-433h-wv4r-9p9x.