What’s Vulnerable › Vulnerabilities

CVE-2021-25179

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-05-05 · updated 2026-06-17
• Weakness: CWE-79

Description

SolarWinds Serv-U before 15.2 is affected by Cross Site Scripting (XSS) via the HTTP Host header.

Affected products

• SolarWinds Serv-U File Server: before 15.2 — fixed in 15.2

How to fix

Upgrade to a fixed version: SolarWinds Serv-U File Server 15.2. Check the vendor advisory for mitigations.

References

• https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-2_release_notes.htm
• https://github.com/matrix
• https://twitter.com/gm4tr1x
• https://www.linkedin.com/in/gabrielegristina
• https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-2_release_notes.htm
• https://github.com/matrix
• https://twitter.com/gm4tr1x
• https://www.linkedin.com/in/gabrielegristina

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