Medium severity · published Aug 31, 2021
CVE-2021-35240
A security researcher stored XSS via a Help Server setting
4.8
CVSS
1.1%
EPSS
No
On KEV
Description
A security researcher stored XSS via a Help Server setting. This affects customers using Internet Explorer, because they do not support 'rel=noopener'.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Orion Platform · SolarWinds
through 2020.2.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-35240
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-35240
Product
https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htm
Patch
https://support.solarwinds.com/SuccessCenter/s/article/Mitigate-the-Stored-XSS-via-Help-Server-setting-CVE-2021-35240?language=en_US
Mitigation
https://support.solarwinds.com/SuccessCenter/s/article/Orion-Platform-2020-2-6-Hotfix-1?language=en_US
Vendor Advisory
https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35240
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