CVE-2025-51966

Name: CVE-2025-51966
Creator: NVD / NIST
Published: 2025-09-02T18:15:35.237+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.23%

Last modified Jun 17, 2026

CVE-2025-51966 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.23%

14.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
U-Tools	Utools	<= 7.1.1

References

https://t1sts.github.io/2025/05/27/uTools-has-an-XSS-vulnerability/Exploit, Third Party Advisory
https://t1sts.github.io/2025/09/01/CVE-2025-51966/Exploit, Third Party Advisory

Timeline

Published: Sep 2, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-51966?

How severe is CVE-2025-51966?

CVE-2025-51966 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.

How do I fix CVE-2025-51966?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-51966?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST