---
id: CVE-2026-65939
title: "In WhatsUp Gold versions released before 2026.0.2,\_a privileged attacker can create a LogToFile action specifying an arbitrary file extension\_within the IIS web root."
summary: "In WhatsUp Gold versions released before 2026.0.2,\_a privileged attacker can create a LogToFile action specifying an arbitrary file extension\_within the IIS web root."
severity: medium
cvss: 6.8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-22
  - CWE-73
  - CWE-434
published: '2026-08-12'
updated: '2026-08-28'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-65939'
references:
  - url: >-
      https://community.progress.com/s/article/WhatsUp-Gold-Security-Bulletin-August-2026
    label: security@progress.com
  - url: >-
      https://docs.progress.com/bundle/whatsupgold-release-notes-26-0/page/WhatsUp-Gold-2026.0-Release-Notes.html
    label: security@progress.com
  - url: 'https://www.progress.com/network-monitoring'
    label: security@progress.com
tags:
  - nvd
epss: 0.00379
epssPercentile: 0.29297
ingestedAt: '2026-08-29T20:41:56.225Z'
---

## Overview

In WhatsUp Gold versions released before 2026.0.2, a privileged attacker can create a LogToFile action specifying an arbitrary file extension within the IIS web root.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.