Authenticated redirection via unsanitized URL string
Published Nov 18, 2025 · Updated Nov 18, 2025
Open redirection in SolarWinds Observability Self-Hosted 2025.4 and earlier allows remote authenticated users to redirect users to malicious sites. An unspecified URL-processing locus fails to sanitize an attacker-controlled string before using it as a redirect destination. Exploitation requires authentication and high-complexity conditions; a successful redirect exposes a user to attacker-controlled content.
Summary
What happened
Open redirection in SolarWinds Observability Self-Hosted 2025.4 and earlier allows remote authenticated users to redirect users to malicious sites. An unspecified URL-processing locus fails to sanitize an attacker-controlled string before using it as a redirect destination. Exploitation requires authentication and high-complexity conditions; a successful redirect exposes a user to attacker-controlled content.
The record
- CVE
- CVE-2025-40545
- Published
- Nov 18, 2025
- Updated
- Nov 18, 2025
- Vendor
- SolarWinds
- Product
- SolarWinds Observability Self-Hosted
- Classifications
- CWE-601, T1566.002
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 18, 2025CVE publishedPublication date reported by the CVE source.
- Nov 18, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=SolarWinds Observability Self-Hosted 2025.4 and prior versions
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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