CVE-2016-20027 ZKTeco ZKBioSecurity 3.0 Multiple Reflected XSS Vulnerabilities
Attackers can execute arbitrary scripts in user browsers via reflected XSS in ZKTeco ZKBioSecurity, potentially leading to session hijacking or data theft.
- 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-2016-20027?
CVE-2016-20027 is a medium-severity cross-site scripting vulnerability in ZKTeco ZKBioSecurity, published on 15 Mar 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
ZKTeco ZKBioSecurity 3.0 contains multiple reflected cross-site scripting vulnerabilities that allow attackers to execute arbitrary HTML and script code by injecting malicious payloads through unsanitized parameters in multiple scripts. Attackers can craft malicious URLs with XSS payloads in vulnerable parameters to execute scripts in a user's browser session within the context of the affected application.
Weakness: CWE-79
Which versions are affected by CVE-2016-20027?
How do I fix CVE-2016-20027?
No fix has been published for CVE-2016-20027 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-2016-20027 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-20027 exists.
Sources
Also known as GHSA-7v59-xppj-w9h9.