CVE-2021-47743 COMMAX Biometric Access Control System 1.0.0 Reflected XSS via Cookie Parameters
Attackers can execute arbitrary scripts in victim browsers via reflected XSS in cookie parameters of the COMMAX Biometric Access Control System.
- 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-2021-47743?
CVE-2021-47743 is a medium-severity cross-site scripting vulnerability in COMMAX Biometric Access Control System, published on 31 Dec 2025. 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
COMMAX Biometric Access Control System 1.0.0 contains an unauthenticated reflected cross-site scripting vulnerability in cookie parameters 'CMX_ADMIN_NM' and 'CMX_COMPLEX_NM'. Attackers can inject malicious HTML and JavaScript code into these cookie values to execute arbitrary scripts in a victim's browser session.
Weakness: CWE-79
Which versions are affected by CVE-2021-47743?
How do I fix CVE-2021-47743?
No fix has been published for CVE-2021-47743 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-2021-47743 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47743 exists.
Sources
Also known as GHSA-x357-46c7-h4hf.