---
id: CVE-2026-69237
title: >-
  There is an HTML injection vulnerability in Esri Portal for ArcGIS versions
  11.3 and prior that allows a remote attacker with administrative privileges to
  insert arbitrary HTML into an administrative API
summary: >-
  There is an HTML injection vulnerability in Esri Portal for ArcGIS versions
  11.3 and prior that allows a remote attacker with administrative privileges to
  insert arbitrary HTML into an administrative API. Users working with ArcGIS
  Enterp…
severity: low
cvss: 3.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: esri
product: portal_for_arcgis
affected:
  - portal_for_arcgis < 11.1
  - portal_for_arcgis = 11.1
  - portal_for_arcgis = 11.2
  - portal_for_arcgis = 11.3
patched:
  - portal_for_arcgis 11.1
published: '2026-08-21'
updated: '2026-09-11'
sourceUpdated: '2026-09-11T20:18:01.287'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-69237'
references:
  - url: >-
      https://www.esri.com/arcgis-blog/products/arcgis-enterprise/administration/august-2026-arcgis-security-bulletin
    label: psirt@esri.com
tags:
  - nvd
epss: 0.0017
epssPercentile: 0.06701
ingestedAt: '2026-09-12T00:03:49.031Z'
---

## Overview

There is an HTML injection vulnerability in Esri Portal for ArcGIS versions 11.3 and prior that allows a remote attacker with administrative privileges to insert arbitrary HTML into an administrative API. Users working with ArcGIS Enterprise 11.1, and 11.3 are encouraged to patch. All users are advised to upgrade to the latest long-term support release.

## Affected

- `portal_for_arcgis < 11.1`
- `portal_for_arcgis = 11.1`
- `portal_for_arcgis = 11.2`
- `portal_for_arcgis = 11.3`

## Remediation

Upgrade past the affected range:

- `portal_for_arcgis 11.1`