XSS in Solarwinds Orion Platform
CVE-2021-35240
A security researcher stored XSS via a Help Server setting. This affects customers using Internet Explorer, because they do not support 'rel=noopener'.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.004 (60.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:C/C:H/I:L/A:L.
Affected products
- Solarwinds Orion Platform — versions 2020.2.6 and previous versions
Weakness classification (CWE)
Public proof-of-concept exploits
References
- documentation.solarwinds.com/en/success_center/orionplatform/content/core-secur… (x_refsource_MISC)
- support.solarwinds.com/SuccessCenter/s/article/Orion-Platform-2020-2-6-Hotfix-1 (x_refsource_MISC)
- www.solarwinds.com/trust-center/security-advisories/cve-2021-35240 (x_refsource_MISC)
- support.solarwinds.com/SuccessCenter/s/article/Mitigate-the-Stored-XSS-via-Help… (x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-35240?
- CVE-2021-35240 is a medium-severity vulnerability in Solarwinds Orion Platform, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2021-08-31.
- How severe is CVE-2021-35240?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2021-35240 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.