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Vulnerability record · CVE-2021-25179 · published 5 May 2021

CVE-2021-25179: Solarwinds serv-u file server cross-site scripting vulnerability

Solarwinds · Serv U File Server

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

6.1 CVSS 3.1 Medium EPSS 1.4% · top 28.7% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score, v2 4.3
1.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

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

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-2_release_notes.htm Release NotesVendor Advisory
https://github.com/matrix Not ApplicableThird Party Advisory
https://twitter.com/gm4tr1x Third Party Advisory
https://www.linkedin.com/in/gabrielegristina Permissions RequiredThird Party Advisory
https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-2_release_notes.htm Release NotesVendor Advisory
https://github.com/matrix Not ApplicableThird Party Advisory
https://twitter.com/gm4tr1x Third Party Advisory
https://www.linkedin.com/in/gabrielegristina Permissions RequiredThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2009-4006Serv-U FTP Server TEA Decoding Stack Buffer OverflowRhinoSoft Serv-U FTP server versions before 9.1.0.0 contain a stack-based buffer overflow in the TEA decoding algorithm. A remote attacker can trigge…EPSS 83%analysed10.0CVE-2004-2532Solarwinds serv-u file server vulnerabilityServ-U FTP server before 5.1.0.0 has a default account and password for local administration, which allows local users to execute arbitrary commands …EPSS 15%10.0CVE-2004-0330Serv-U FTP MDTM time zone buffer overflow allows remote code executionServ-U FTP versions before 5.0.0.4 contain a buffer overflow in the handling of the time zone argument to the MDTM command. A remote authenticated FT…EPSS 85%analysed9.0CVE-2011-4800Solarwinds serv-u file server path traversal vulnerabilityDirectory traversal vulnerability in Serv-U FTP Server before 11.1.0.5 allows remote authenticated users to read and write arbitrary files, and list …EPSS 7.3%9.0CVE-2008-4501Solarwinds serv-u file server path traversal vulnerabilityDirectory traversal vulnerability in the FTP server in Serv-U 7.0.0.1 through 7.3, including 7.2.0.1, allows remote authenticated users to overwrite …EPSS 11%8.5CVE-2004-2111Serv-U FTP Server site chmod stack buffer overflowServ-U FTP Server before 4.2 has a stack-based buffer overflow in the site chmod command, triggered by a long filename. A remote attacker who can iss…EPSS 87%analysed7.8CVE-2009-1031Solarwinds serv-u file server path traversal vulnerabilityDirectory traversal vulnerability in the FTP server in Rhino Software Serv-U File Server 7.0.0.1 through 7.4.0.1 allows remote attackers to create ar…EPSS 11%7.5CVE-2001-1463Solarwinds serv-u file server vulnerabilityThe remote administration client for RhinoSoft Serv-U 3.0 sends the user password in plaintext even when S/KEY One-Time Password (OTP) authentication…EPSS 3.2%

Source: NIST National Vulnerability Database (record CVE-2021-25179), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.