CVE-2026-65939: Progress WhatsUp Gold

Medium severity, CVSS 6.8. EPSS: 0.4% chance of exploitation in the next 30 days.

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 WhatsUp Gold: before 26.0.2 (fixed in 26.0.2)

Published 2026-08-12. Last modified 2026-09-02.