CVE-2021-29109
6.1 · MEDIUMOverview
CVE-2021-29109 is a medium-severity vulnerability affecting esri portal_for_arcgis. It was published on October 1, 2021 and has a CVSS 3.1 base score of 6.1 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
A reflected XSS vulnerability in Esri Portal for ArcGIS version 10.9 and below may allow a remote attacker able to convince a user to click on a crafted link which could potentially execute arbitrary JavaScript code in the user’s browser.
Remediation
Check the references section for vendor advisories and patches from esri. Update portal_for_arcgis to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| esri | portal_for_arcgis | 0 | Affected |
Frequently Asked Questions
What is CVE-2021-29109?
CVE-2021-29109 is a medium-severity vulnerability affecting esri portal_for_arcgis. It was published on October 1, 2021 and has a CVSS 3.1 base score of 6.1 (MEDIUM).
How severe is CVE-2021-29109?
This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-29109?
Check the references section for vendor advisories and patches from esri. Update portal_for_arcgis to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-29109?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-29109 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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