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5.4

CVE-2025-26391: SolarWinds Observability Allows Malicious Code Execution

CVE-2025-26391 · published 11 months ago
Summary

A security weakness in SolarWinds Observability Self-Hosted allows attackers to inject malicious code into user-created URLs, which can lead to unauthorized actions. This requires a low-level account to access. Users should apply the latest patches and updates to mitigate this risk.

What to do
  • Update solarwinds observability_self-hosted to version 2025.4.1 or later.
Affected software
VendorProductAffected versions
solarwinds observability_self-hosted < 2025.4.1
cpe:2.3:a:solarwinds:observability_self-hosted:*:*:*:*:*:*:*:*
Original advisory text
SolarWinds Observability Self-Hosted XSS Vulnerability. The SolarWinds Platform was susceptible to a XSS vulnerability that affects user-created URL fields. This vulnerability requires authenticati...
SolarWinds Observability Self-Hosted XSS Vulnerability. The SolarWinds Platform was susceptible to a XSS vulnerability that affects user-created URL fields. This vulnerability requires authentication from a low-level account.
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
5.4 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-79Cross-site Scripting (XSS)
Timeline
Published18 Nov 2025
Updated31 Oct 2026
First seen7 Mar 2026
Sources
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