XSS in Solarwinds Observability Self-Hosted
CVE-2026-28330
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Solarwinds Observability Self-Hosted — versions 2026.2.3 and all previous versions
Weakness classification (CWE)
References
- documentation.solarwinds.com/en/success_center/orionplatform/content/release_no… (release-notes)
- www.solarwinds.com/trust-center/security-advisories/CVE-2026-28330 (vendor-advisory)
- documentation.solarwinds.com/en/success_center/orionplatform/content/core-secur… (x_secure-configuration-guide)
Frequently asked questions
- What is CVE-2026-28330?
- CVE-2026-28330 is a medium-severity vulnerability in Solarwinds Observability Self-Hosted, classified under Cross-site Scripting. CVSS score: 4.6/10. Published 2026-10-20.
- How severe is CVE-2026-28330?
- Medium severity. CVSS v3 base score is 4.6 out of 10.