CVE-2021-25179 json
SolarWinds Serv-U before 15.2 is affected by Cross Site Scripting (XSS) via the HTTP Host header.
published 5y ago modified 4mo ago also EUVD-2021-12090
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 72%
- public exploits
- 0
- none known
Summary
SolarWinds Serv-U before 15.2 is affected by Cross Site Scripting (XSS) via the HTTP Host header.
Patch / fix
- solarwinds serv-u_file_server 15.2
Is CVE-2021-25179 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
1.39% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
documentation.solarwinds.com
/en/success_center/servu/content/release_notes/servu_15-2_release_notes.htm
release-notes, vendor-advisory
-
linkedin.com
/in/gabrielegristina
permissions-required, third-party-advisory
-
twitter.com
/gm4tr1x
third-party-advisory
-
github.com
/matrix
not-applicable, third-party-advisory
Sources
- CVE List CVE-2021-25179
- NVD CVE-2021-25179
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.