What’s Vulnerable › Vulnerabilities

CVE-2026-65939: WhatsUp Gold versions prior to 26.0.2 contain an arbitrary file write vulnerability in the LogToFile action handler.

• Severity: medium (CVSS 6.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-12 · updated 2026-10-24
• Weakness: CWE-22

Description

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.

Affected products

• Progress Software Corporation WhatsUp Gold: before 26.0.2 — fixed in 26.0.2

How to fix

Upgrade to a fixed version: Progress Software Corporation WhatsUp Gold 26.0.2. Check the vendor advisory for mitigations.

References

• https://community.progress.com/s/article/WhatsUp-Gold-Security-Bulletin-August-2026
• https://docs.progress.com/bundle/whatsupgold-release-notes-26-0/page/WhatsUp-Gold-2026.0-Release-Notes.html
• https://www.progress.com/network-monitoring

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