CVE-2025-55105: Esri Portal For Arcgis

Medium severity, CVSS 4.8. EPSS: 0.2% chance of exploitation in the next 30 days.

There is a stored Cross-site Scripting vulnerability in Esri Portal for ArcGIS Enterprise Sites versions 10.9.1 – 11.4 that may allow a remote, authenticated attacker to inject malicious a file with an embedded xss script which when loaded could potentially execute arbitrary JavaScript code in the victim’s browser. The privileges required to execute this attack are high. The attack could disclose a privileged token which may result in the attacker gaining full control of the Portal.

Affected products

• Esri Portal For Arcgis: from 10.9.1, up to and including 11.4

Published 2025-08-21. Last modified 2026-06-17.