CVE-2026-69234

reflected cross site scripting vulnerability in Esri Portal for ArcGIS

Published: Aug 21, 2026Updated: Sep 11, 2026 Sources: CVE List NVDCWE-79

6.1MEDIUM

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:RUser Interaction

Required

Scope

S:CScope

Changed

Impact

C:LConfidentiality

Low

I:LIntegrity

Low

A:NAvailability

None

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Weaknesses

CWE-79

Affected Products

Esri

commercial·US

Portal for ArcGISOn-premWeb App

Enterprise Software / itsm-monitoring

and 1 more affected products View all →

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Execution

Initial Access

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References

https://www.esri.com/arcgis-blog/products/arcgis-enterprise/administration/august-2026-arcgis-security-bulletin

esri.com

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