CVEvulnerability

CVE-2025-15559

9.8 CRITICAL Published 2026-02-19 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-02-19
Last modified
2026-06-17
Assigner
551230f0-3615-47bd-b7cc-93e92e730bbf
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-78

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.

Affected configurations

• nestersoft worktime (<= 11.8.8)

Related

Weakness · CWE (1)

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness

References