SolarWinds Observability Self-Hosted Cross-Site Scripting Vulnerability

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-28330
StatePUBLISHED
AssignerSolarWinds
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-20 17:17:39 UTC
Updated2026-10-20 19:59:00 UTC
DescriptionSolarWinds Observability Self-Hosted was found to be affected by a stored Cross-Site Scripting (XSS) vulnerability that allows authenticated attackers to inject malicious content or JavaScript, which is displayed or executed in the browsers of other authenticated users who access the affected pages.

Risk And Classification

Primary CVSS: v3.1 4.6 MEDIUM from [email protected]

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

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.6MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
3.1CNACVSS4.6MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA SolarWinds SolarWinds Observability Self-Hosted affected 2026.2.3 and all previous versions Not specified

References

ReferenceSourceLinkTags
documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/hco_202... [email protected] documentation.solarwinds.com
documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configura... [email protected] documentation.solarwinds.com
www.solarwinds.com/trust-center/security-advisories/CVE-2026-28330 [email protected] www.solarwinds.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Dimitrios Titos from NATO (en)

CNA: Georgios Sotiriadis from NATO (en)

CNA: Frank Lycops from NATO (en)

Additional Advisory Data

Solutions

CNA: SolarWinds recommends customers to upgrade to Observability Self-Hosted version 2026.4 as soon as is practical.

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