CVE-2021-35238
Stored XSS through URL POST parameter in CreateExternalWebsite Vulnerability
User with Orion Platform Admin Rights could store XSS through URL POST parameter in CreateExternalWebsite website.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Stored XSS through URL POST parameter in CreateExternalWebsite Vulnerability
User with Orion Platform Admin Rights could store XSS through URL POST parameter in CreateExternalWebsite website.
- Record
CVE-2021-35238- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-21881
User with Orion Platform Admin Rights could store XSS through URL POST parameter in CreateExternalWebsite website.
- Record
EUVD-2021-21881- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-p94g-5v88-v8wc No score
User with Orion Platform Admin Rights could store XSS through URL POST parameter in...
User with Orion Platform Admin Rights could store XSS through URL POST parameter in CreateExternalWebsite website.
- Record
GHSA-p94g-5v88-v8wc- Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
User with Orion Platform Admin Rights could store XSS through URL POST parameter in CreateExternalWebsite website.
- Record
CVE-2021-35238- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-35238 is a medium vulnerability (CVSS 4.8) in Solarwinds Orion Platform, published September 1, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.06%, the 64th percentile. No source names a fixed version.
References
documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htm
support.solarwinds.com/SuccessCenter/s/article/Orion-Platform-2020-2-6-Hotfix-1?language=en_US
solarwinds.com/trust-center/security-advisories/cve-2021-35238
nvd.nist.gov/vuln/detail/CVE-2021-35238
github.com/advisories/GHSA-p94g-5v88-v8wc