WhatsUp Gold versions prior to 26.0.2 contain an arbitrary file write vulnerability in the LogToFile action handler.

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-65939
StatePUBLISHED
AssignerProgressSoftware
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-12 16:17:13 UTC
Updated2026-08-12 16:17:13 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 6.8 MEDIUM from [email protected]

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

Problem Types: CWE-22 | CWE-73 | CWE-434 | CWE-434 CWE-434 Unrestricted upload of file with dangerous type | CWE-73 CWE-73 External control of file name or path | CWE-22 CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.8MEDIUMCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS6.8MEDIUMCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Progress Software Corporation WhatsUp Gold affected 26.0.2 semver Windows

References

ReferenceSourceLinkTags
community.progress.com/s/article/WhatsUp-Gold-Security-Bulletin-August-2026 [email protected] community.progress.com
docs.progress.com/bundle/whatsupgold-release-notes-26-0/page/WhatsUp-Gold-2026.... [email protected] docs.progress.com
www.progress.com/network-monitoring [email protected] www.progress.com
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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