CVE-2021-35240: Stored XSS via Help Server settings
First published: Tue Aug 31 2021(Updated: )
A security researcher stored XSS via a Help Server setting. This affects customers using Internet Explorer, because they do not support 'rel=noopener'.
Credit: psirt@solarwinds.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| SolarWinds Orion Platform | <=2020.2.5 | |
| Microsoft Internet Explorer |
Remedy
SolarWinds recommends installing 2020.2.6 Hotfix 1 for the Orion Platform as soon as it becomes available. All customers should implement all the recommendations from the Orion Secure Configuration Guide.
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Reference Links
- https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htm
- https://support.solarwinds.com/SuccessCenter/s/article/Mitigate-the-Stored-XSS-via-Help-Server-setting-CVE-2021-35240?language=en_US
- https://support.solarwinds.com/SuccessCenter/s/article/Orion-Platform-2020-2-6-Hotfix-1?language=en_US
- https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35240
Frequently Asked Questions
What is the severity of CVE-2021-35240?
The severity of CVE-2021-35240 is medium with a CVSS score of 4.8.
Which software is affected by CVE-2021-35240?
CVE-2021-35240 affects SolarWinds Orion Platform versions up to and including 2020.2.5.
Which browser is vulnerable to CVE-2021-35240?
Internet Explorer is vulnerable to CVE-2021-35240 because it does not support 'rel=noopener'.
How can I mitigate the stored XSS vulnerability in SolarWinds Orion Platform?
To mitigate the stored XSS vulnerability in SolarWinds Orion Platform, apply the Orion Platform 2020.2.6 Hotfix 1 or follow the secure configuration guidelines provided by SolarWinds.
Where can I find more information about CVE-2021-35240?
You can find more information about CVE-2021-35240 on the SolarWinds documentation and support centers.
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