An unauthenticated attacker with access to TCP port 12306 of the WorkExaminer server can exploit missing server-side authentication checks to bypass the login prompt in the WorkExaminer Professional console to gain administrative access to the WorkExaminer server and therefore all sensitive monitoring data. This includes monitored screenshots and keystrokes of all users. The WorkExaminer Professional console is used for administrative access to the server. Before access to the console is granted administrators must login. Internally, a custom protocol is used to call a respective stored procedure on the MSSQL database. The return value of the call is not validated on the server-side. Instead it is only validated client-side which allows to bypass authentication.
References
History

Thu, 23 Oct 2025 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Efficientlab
Efficientlab workexaminer Professional
Vendors & Products Efficientlab
Efficientlab workexaminer Professional

Wed, 22 Oct 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 21 Oct 2025 12:00:00 +0000

Type Values Removed Values Added
Description An unauthenticated attacker with access to TCP port 12306 of the WorkExaminer server can exploit missing server-side authentication checks to bypass the login prompt in the WorkExaminer Professional console to gain administrative access to the WorkExaminer server and therefore all sensitive monitoring data. This includes monitored screenshots and keystrokes of all users. The WorkExaminer Professional console is used for administrative access to the server. Before access to the console is granted administrators must login. Internally, a custom protocol is used to call a respective stored procedure on the MSSQL database. The return value of the call is not validated on the server-side. Instead it is only validated client-side which allows to bypass authentication.
Title Missing Server-Side Authentication Checks in EfficientLab WorkExaminer Professional
Weaknesses CWE-602
References

cve-icon MITRE

Status: PUBLISHED

Assigner: SEC-VLab

Published: 2025-10-21T11:43:44.598Z

Updated: 2025-10-22T18:59:33.134Z

Reserved: 2025-09-17T14:05:16.432Z

Link: CVE-2025-10640

cve-icon Vulnrichment

Updated: 2025-10-22T18:59:19.301Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-21T12:15:35.420

Modified: 2025-10-22T19:15:33.423

Link: CVE-2025-10640

cve-icon Redhat

No data.