Stored Cross-Site Scripting in ZKTeco's ZKAccess Security System
CVE-2016-20032

5.1MEDIUM

Key Information:

Vendor

Zkteco Inc.

Status
Zkteco Zkaccess Security System
Vendor
CVE Published:
15 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2016-20032?

The ZKTeco ZKAccess Security System version 5.3.1 exhibits a stored cross-site scripting vulnerability that may enable attackers to inject and execute arbitrary HTML and script code. This vulnerability arises from improper validation of user input in the 'holiday_name' and 'memo' POST parameters, allowing malicious users to submit crafted requests. Such attacks can compromise user sessions and potentially lead to unauthorized access to sensitive information, highlighting the need for prompt security measures.

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Affected Version(s)

ZKTeco ZKAccess Security System 5.3.12252

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2016-20032 - Proof of Concept

CVE-2016-20032 - Proof of Concept

References

https://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-53...
third-party-advisory
https://cxsecurity.com/issue/WLB-2016090004
third-party-advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/116479
vdb-entry

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

LiquidWorm as Gjoko Krstic of Zero Science Lab
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