CVE-2026-69234

Medium

Description

There is a reflected cross site scripting vulnerability in Esri Portal for ArcGIS versions 11.5 and prior which may allow a remote, unauthenticated attacker to create a crafted link which when clicked could potentially execute arbitrary JavaScript code in the victim’s browser. Users working with ArcGIS Enterprise 11.1, 11.3, and 11.5 are encouraged to patch. All users are advised to upgrade to the latest long-term support release. Users working with ArcGIS Web App Builder developer edition are advised to migrate to ArcGIS Experience Builder, as ArcGIS Web App Builder developer edition is unsupported when this CVE is assigned.

SeverityMedium
CVSS6.1
Exploit probability—
ProductEsri Portal For Arcgis
PublishedAug 21, 2026
First seenAug 21, 2026

How to fix

Update
  • esri portal_for_arcgis11.1 or later

Affected products

ProductAffected versionsFixed in
esri portal_for_arcgisv < 11.1, 11.1, 11.2, 11.3, 11.4, 11.511.1

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CVE-2026-69234 · Esri Portal For Arcgis · Dark Radar