TI-2026-76953 Aliases CVE-2026-28330 GHSA-46g5-q9v5-87x4

Stored cross-site scripting in SolarWinds Observability Self-Hosted

LOW 21CWE-79Published 2026-10-20 · Updated 2026-10-23

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

SolarWinds Observability Self-Hosted 2026.2.3 and all previous versions contain a stored cross-site scripting flaw (CWE-79). Input is not neutralized before it is displayed in web pages, so an authenticated attacker can inject malicious JavaScript or content that runs in the browsers of other authenticated users who open the affected pages.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00282 20th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
SolarWinds	SolarWinds Observability Self-Hosted	2026.2.3 and all previous versions	—	No fix listed	CNA

SolarWinds Observability Self-Hosted VendorSolarWinds Affected 2026.2.3 and all previous versions Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:solarwinds:observability_self-hosted::::::::	—	—	SolarWinds

cpe:2.3:a:solarwinds:observability_self-hosted:*:*:*:*:*:*:*:* Versions — — ·SolarWinds

Remediation

The sources list no fixed version for SolarWinds Observability Self-Hosted.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

2026-10-20 Threatist record created from CVE-2026-28330
2026-10-20 CISA SSVC decision points changed
2026-10-21 Alias added: GHSA-46g5-q9v5-87x4

References

Advisory 1

https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28330

Other 2

TI-2025-27044 SolarWinds Web Help Desk Deserialization of Untrusted Data Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
TI-2025-27034 SolarWinds Web Help Desk Security Control Bypass Vulnerability KEVCVSS 3.1CRITICAL 9.8
TI-2025-19358 SolarWinds Web Help Desk Deserialization of Untrusted Data Privilege Escalation Vulnerability KEVCVSS 3.1CRITICAL 9.8
TI-2024-19175 SolarWinds Web Help Desk Java Deserialization Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
TI-2021-14105 Serv-U Remote Memory Escape Vulnerability KEVCVSS 3.1CRITICAL 10.0
TI-2020-08199 Authentication bypass in SolarWinds Orion Platform KEVCVSS 3.1CRITICAL 9.8

See all 349 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences