CVE-2026-69231

Received Received - Intake

Stored XSS in Esri Portal for ArcGIS

Publication date: 2026-08-21

Last updated on: 2026-08-21

Assigner: Environmental Systems Research Institute, Inc.

Description

There is a stored cross site scripting issue in Esri Portal for ArcGIS versions 11.5 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 are encouraged to patch. All users are advised to upgrade to the latest long-term support release.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-21

Last Modified

2026-08-21

Generated

2026-08-22

AI Q&A

2026-08-22

EPSS Evaluated

N/A

NVD

CVE-2026-69231

EUVD

EUVD-2026-64159

Affected Vendors & Products

Vendor	Product	Version / Range
esri	portal_for_arcgis	to 11.5 (exc)
esri	arcgis_enterprise	to 11.1 (inc)
esri	arcgis_enterprise	to 11.3 (inc)
esri	arcgis_enterprise	to 11.5 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This vulnerability is a stored cross-site scripting (XSS) issue in Esri Portal for ArcGIS versions 11.5 and earlier. It allows a remote, privileged attacker to inject malicious code that could execute arbitrary JavaScript in a victim's browser when they access the affected application.

Impact Analysis

An attacker could exploit this to steal user sessions, deface web pages, or perform actions on behalf of users. Users of ArcGIS Enterprise versions 11.1, 11.3, and 11.5 are particularly at risk and should apply patches immediately.

Mitigation Strategies

Upgrade to the latest long-term support release of ArcGIS Enterprise. Users with versions 11.1, 11.3, or 11.5 should apply patches immediately.

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