CVE-2026-28330

MEDIUM 4.6

SolarWinds Observability Self-Hosted Cross-Site Scripting Vulnerability

CVSS Score

4.6

EPSS Score

0.0%

EPSS Percentile

0th

SolarWinds 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.

CWE	CWE-79
Vendor	solarwinds
Product	solarwinds observability self-hosted
Published	Oct 20, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

SolarWinds / SolarWinds Observability Self-Hosted

2026.2.3 and all previous versions

References

NVD ↗ CVE.org ↗ EPSS Data ↗

documentation.solarwinds.com: https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/hco_2026-4_release_notes.htm solarwinds.com: https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28330 documentation.solarwinds.com: https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htm

Credits

🔍 Dimitrios Titos from NATO 🔍 Georgios Sotiriadis from NATO 🔍 Frank Lycops from NATO