SolarWinds Observability Self-Hosted Stored Cross-Site Scripting Vulnerability

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Summary

CVECVE-2026-28298
StatePUBLISHED
AssignerSolarWinds
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-26 15:16:34 UTC
Updated2026-03-31 14:14:55 UTC
DescriptionSolarWinds Observability Self-Hosted was found to be affected by a stored cross-site scripting vulnerability, which when exploited, can lead to unintended script execution.

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from [email protected]

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

EPSS: 0.000530000 probability, percentile 0.167840000 (date 2026-04-02)

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary8.1HIGHCVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
3.1[email protected]Secondary5.9MEDIUMCVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N
3.1CNACVSS5.9MEDIUMCVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Solarwinds Observability Self-hosted All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA SolarWinds SolarWinds Observability Self-Hosted affected 2026.1.1 and previous versions Not specified

References

ReferenceSourceLinkTags
documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/hco_202... [email protected] documentation.solarwinds.com Release Notes
www.solarwinds.com/trust-center/security-advisories/CVE-2026-28298 [email protected] www.solarwinds.com Vendor Advisory
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: James Donlon-Armadin (en)

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