CVE-2025-15561 describes a privilege escalation vulnerability in NesterSoft WorkTime, affecting both on-premise and cloud deployments. An attacker can achieve NT Authority\SYSTEM privileges by placing a specially named malicious executable (WTWatch.exe) in a world-writable directory (C:\ProgramData\wta\ClientExe), which is then executed by the WorkTime monitoring daemon. This vulnerability has a CVSS score of 7.8 (High) due to its local attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, indicating awareness within the security community.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 11.8.8CPE matchmatch criteria | cpe:2.3:a:nestersoft:worktime:*:*:*:*:cloud:*:*:* | ||
<= 11.8.8CPE matchmatch criteria | cpe:2.3:a:nestersoft:worktime:*:*:*:*:on-premise:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.