CVE-2025-15559
Unauthenticated OS Command Injection in NesterSoft WorkTime
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 :
Feb. 19, 2026, 10:45 a.m.
Last Modified :
Feb. 19, 2026, 10:45 a.m.
Remotely Exploit :
No
Source :
SEC-VLab
Affected Products
The following products are affected by CVE-2025-15559
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update NesterSoft WorkTime to the latest version.
- Restrict access to the WorkTime server API.
- Validate and sanitize all user inputs.
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The following list is the news that have been mention
CVE-2025-15559 vulnerability anywhere in the article.