# CVE-2025-15128: ZKTeco BioTime IDOR password disclosure in safe_setting endpoint

Source: https://junglewise.ai/threats/cve-2025-15128-zkteco-biotime-idor-password-disclosure-in-safe-setting-endpoint  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-12-28. Updated: 2026-06-11  
License: CC BY 4.0 with a link back

CVE-2025-15128 · Severity: medium · CVSS 5.3 · Published 2025-12-28

ZKTeco BioTime, a software suite used for managing employee time and attendance, contains a security flaw that exposes sensitive administrative passwords in plain text. An attacker can access these credentials remotely, potentially gaining full administrative control over the system and its data. This could lead to unauthorized access to employee records or disruption of time-tracking operations.

Technologies: [Zkteco BioTime](https://junglewise.ai/threats/technologies/biotime). Vendors: [Zkteco](https://junglewise.ai/threats/vendors/zkteco).

## Quick answers

**Is CVE-2025-15128 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-15128 being exploited in the wild.

**How severe is CVE-2025-15128?** Medium severity, with a CVSS score of 5.3, published 28 December 2025.

**Which products and versions are affected?** Zkteco BioTime 9.0.3, 9.0.4, 9.5.2.

**Is there a fix for CVE-2025-15128?** A patch was published on 2026-06-11: Vendor confirmed fix in version 9.0.6 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2025-15128 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2025-15128?** Check whether you run Zkteco BioTime at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An Insecure Direct Object Reference (IDOR) vulnerability exists in the /base/safe_setting/ endpoint of ZKTeco BioTime. The application returns HTML containing sensitive fields, specifically 'backup_encryption_password_decrypt' and 'export_encryption_password_decrypt', in cleartext within password input fields. In versions 9.0.3 and 9.5.2, this endpoint is accessible without authentication; in version 9.0.4, it is accessible to any authenticated low-privilege user. Attackers can exploit this to retrieve administrative credentials, often matching the default admin password, leading to full system takeover. The issue is resolved in version 9.0.6.

## Affected products

- ZKTeco BioTime 9.0.3, 9.0.4, 9.5.2

## Timeline

- 2025-12-28: disclosed
- 2025-12-28: advisory
- 2026-06-11: patched: Vendor confirmed fix in version 9.0.6

## References

- [https://github.com/ionutluca888/IDOR-POC-ZKBio-Time/tree/main](https://github.com/ionutluca888/IDOR-POC-ZKBio-Time/tree/main)
- [https://vuldb.com/cve/CVE-2025-15128](https://vuldb.com/cve/CVE-2025-15128)
- [https://vuldb.com/submit/711813](https://vuldb.com/submit/711813)
- [https://vuldb.com/vuln/338506](https://vuldb.com/vuln/338506)
- [https://vuldb.com/vuln/338506/cti](https://vuldb.com/vuln/338506/cti)
- [https://www.zkteco.com/en/Security_Bulletinsibs/24](https://www.zkteco.com/en/Security_Bulletinsibs/24)

## Related threats

- [ZKTeco BioTime hard-coded cryptographic key](https://junglewise.ai/threats/cve-2026-108798-a-vulnerability-was-found-in-zkteco-biotime-9-5-6-build-20260130)
- [ZKTeco BioTime authorization bypass in Employee REST API](https://junglewise.ai/threats/cve-2026-108797-a-vulnerability-has-been-found-in-zkteco-biotime-9-5-6-build)
- [ZKTeco BioTime authorization bypass in biometric data endpoint](https://junglewise.ai/threats/cve-2026-108796-a-flaw-has-been-found-in-zkteco-biotime-9-5-6-build-20260130)
- [ZKTeco BioTime improper access control in system settings API](https://junglewise.ai/threats/cve-2026-108795-a-vulnerability-was-detected-in-zkteco-biotime-9-5-6-build)
- [ZKTeco BioTime SQL injection in database migration](https://junglewise.ai/threats/cve-2026-108794-a-security-vulnerability-has-been-detected-in-zkteco-biotime-9-5)