CVE-2025-26395 SolarWinds SWOSH DOM-based reflective XSS Vulnerability

High 7.1 Published 10 Jun 2025 Updated 10 Jun 2025

An authenticated administrator can trigger DOM-based XSS via unsanitized URL fields in SolarWinds Observability Self-Hosted.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2025-26395?

CVE-2025-26395 is a high-severity cross-site scripting vulnerability in SolarWinds Observability Self-Hosted, published on 10 Jun 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

SolarWinds Observability Self-Hosted

was susceptible to a cross-site scripting (XSS) vulnerability due to an unsanitized field in the URL. The attack requires authentication using an administrator-level account and user interaction is required.

Weakness: CWE-79

Which versions are affected by CVE-2025-26395?

It affects 1 product.

Products include Solarwinds Observability Self-Hosted.

How do I fix CVE-2025-26395?

No fix has been published for CVE-2025-26395 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-26395 being exploited?

There is no known exploitation of CVE-2025-26395 in the wild and no public exploit code.

Sources

Also known as GHSA-5r93-p7fh-7rjj.