CVE-2021-35228 json
Reflected cross site scripting affecting SolarWinds: DPA 2021.3.7388
published 2021-10-21 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-21871
- cvss
- 5.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 47%
- public exploits
- 0
- none known
Summary
This vulnerability occurred due to missing input sanitization for one of the output fields that is extracted from headers on specific section of page causing a reflective cross site scripting attack. An attacker would need to perform a Man in the Middle attack in order to change header for a remote victim.
Patch / fix
- SolarWinds SolarWinds 2021.3.7388
Exploit prediction
0.58% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L |
| NVD | 3.1 | 4.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 2.6 | AV:N/AC:H/Au:N/C:N/I:P/A:N |
Affected products
- SolarWinds SolarWinds
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
solarwinds.com
/trust-center/security-advisories/CVE-2021-35228
vendor-advisory
-
documentation.solarwinds.com
/en/success_center/dpa/content/release_notes/dpa_2021-3-7438_release_notes.htm
release-notes, vendor-advisory
Sources
- CVE List CVE-2021-35228
- NVD CVE-2021-35228
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