CVE-2025-51966: U-Tools Utools

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

A cross-site scripting (XSS) vulnerability exists in the PDF preview functionality of uTools thru 7.1.1. When a user previews a specially crafted PDF file, embedded JavaScript code executes within the application's privileged context, potentially allowing attackers to steal sensitive data or perform unauthorized actions.

Affected products

• U-Tools Utools: up to and including 7.1.1

Published 2025-09-02. Last modified 2026-06-17.