Actively exploited in the wild
ZKTeco BioTime Path Traversal Vulnerability
ZKTeco - BioTime · Listed in the CISA KEV since 2025-05-19. This indicates confirmed attacks in production environments.
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CVE-2023-38950
HighCVSS 7.5KEVExploitation Probability (EPSS)
Very high risk100th percentile - higher than 100% of all known CVEs
Summary
A path traversal vulnerability in the iclock API of ZKTeco BioTime v8.5.5 allows unauthenticated attackers to read arbitrary files via a crafted payload. The flaw is fixed in version 9.0.120240617.19506.
Risk Assessment
The risk includes unauthorized access to sensitive system files, configuration files, or user data, potentially leading to information disclosure and further attacks.
Recommendation
Immediately update ZKBioTime to version 9.0.120240617.19506 or later, and restrict access to the iclock API to trusted networks only.
Other vulnerabilities in ZKTeco BioTime
See all- CVE-2023-38951Critical
A vulnerability in ZKTeco BioTime 8.5.5 through 9.x before 9.0.1 (20240617.19506) allows authenticated attackers to create or overwrite arbitrary files on the server. It exploits a path traversal issue in the Username field and lack of input sanitization on the SSH Key field in /base/sftpsetting/ endpoints.
- CVE-2025-15128Medium
A vulnerability was detected in ZKTeco BioTime up to versions 9.0.3/9.0.4/9.5.2, affecting an unknown part of the file /base/safe_setting/ of the Endpoint component. Manipulating the argument backup_encryption_password_decrypt/export_encryption_password_decrypt results in unprotected storage of credentials.
- CVE-2023-51142High
An issue in ZKTeco BioTime v.8.5.4 and before allows a remote attacker to obtain sensitive information. The vulnerability stems from improper access control to data.
- CVE-2023-38952High
An insecure access control vulnerability in ZKTeco BioTime through 9.0.1 allows authenticated attackers to escalate privileges because session IDs are not validated against user type. Any authenticated user can access administrative functions without restriction by making direct requests to admin endpoints.
- CVE-2023-38949High
A vulnerability in a hidden API of ZKTeco BioTime v8.5.5 allows unauthenticated attackers to arbitrarily reset the Administrator password via a crafted web request.
Original NVD description (English source)
A path traversal vulnerability in the iclock API of ZKTeco BioTime v8.5.5 allows unauthenticated attackers to read arbitrary files via supplying a crafted payload. This vulnerability was fixed in version 9.0.120240617.19506 of ZKBioTime.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS