CVE-2021-29110: Esri Portal For Arcgis

Medium severity, CVSS 5.4. EPSS: 0.7% chance of exploitation in the next 30 days.

Stored cross-site scripting (XSS) issue in Esri Portal for ArcGIS may allow a remote unauthenticated attacker to pass and store malicious strings in the home application.

Affected products

• Esri Portal For Arcgis: up to and including 10.9

Published 2021-10-01. Last modified 2026-06-17.