Description

An unauthenticated attacker can inject OS commands when calling a server API endpoint in NesterSoft WorkTime. The server API call to generate and download the WorkTime client from the WorkTime server is vulnerable in the “guid” parameter. This allows an attacker to execute arbitrary commands on the WorkTime server as NT Authority\SYSTEM with the highest privileges. Attackers are able to access or manipulate sensitive data and take over the whole server.

INFO

Published Date :

2026-02-19T10:45:34.943Z

Last Modified :

2026-02-23T18:30:52.019Z

Source :

SEC-VLab
AFFECTED PRODUCTS

The following products are affected by CVE-2025-15559 vulnerability.

Vendors Products
Nestersoft
  • Worktime
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-15559.

URL Resource
https://r.sec-consult.com/worktime cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact