CVE-2026-69236: Esri Portal For Arcgis

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

There is a stored cross site scripting issue in Esri Portal for ArcGIS versions 12.1 and prior that may allow a remote, privileged attacker to inject malicious code that could potentially execute arbitrary JavaScript in a victim’s browser. Users working with ArcGIS Enterprise 11.1, 11.3, 11.5, 12.0 or 12.1 are encouraged to patch. All users are advised to upgrade to the latest long-term support release and apply the patch.

Affected products

• Esri Portal For Arcgis: before 11.1 (fixed in 11.1); version 11.1 only; version 11.2 only; version 11.3 only; version 11.4 only; version 11.5 only; …

Published 2026-08-21. Last modified 2026-09-11.