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CVE-2026-69238— HTML injection vulnerability in Esri Portal for ArcGIS

Quick assessment

Affected
Esri Portal for ArcGIS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Esri Portal for ArcGIS 11.5 及更早版本中存在 HTML 注入漏洞，该漏洞允许远程的、具有高权限的攻击者在 Portal for ArcGIS 主应用中插入任意 HTML 代码。建议正在使用 ArcGIS Enterprise 11.1、11.3 和 11.5 的用户进行补丁更新。所有用户都被建议升级到最新的长期支持版本。

CVSS 3.5 · Low EPSS 0.14% · P4

Affected Version Matrix 1

VendorProduct Version RangeStatus
Esri Portal for ArcGIS 11.1≤ 11.5 affected
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I. Basic Information for CVE-2026-69238

Vulnerability Information
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Vulnerability Title
HTML injection vulnerability in Esri Portal for ArcGIS
Source: CVE Program / CVE List V5
Vulnerability Description
There is an HTML injection vulnerability in Esri Portal for ArcGIS versions 11.5 and prior that allows a remote, highly priviliged attacker to insert arbitrary HTML into the Portal for ArcGIS Home application. 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Esri Portal for ArcGIS 11.1 ~ 11.5 -

II. Public POCs for CVE-2026-69238

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III. Intelligence Information for CVE-2026-69238

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Vendor Advisories for CVE-2026-69238 (1)

Same Patch Batch · Esri · 2026-08-21 · 13 CVEs total

CVE-2026-69236 6.1 MEDIUM stored cross site scripting issue in Esri Portal for ArcGIS
CVE-2026-69234 6.1 MEDIUM reflected cross site scripting vulnerability in Esri Portal for ArcGIS
CVE-2026-69235 6.1 MEDIUM stored cross site scripting issue in Esri Portal for ArcGIS
CVE-2026-69224 5.9 MEDIUM information disclosure vulnerability in Esri Portal for ArcGIS
CVE-2026-69225 5.9 MEDIUM information disclosure vulnerability in Esri Portal for ArcGIS
CVE-2026-69230 5.5 MEDIUM stored cross site scripting issue in Esri Portal for ArcGIS
CVE-2026-69231 5.5 MEDIUM stored cross site scripting issue in Esri Portal for ArcGIS
CVE-2026-69232 5.5 MEDIUM stored cross site scripting issue in Esri Portal for ArcGIS
CVE-2026-69233 5.5 MEDIUM stored cross site scripting issue in Esri Portal for ArcGIS
CVE-2026-69229 5.4 MEDIUM HTML injection vulnerability in Esri Portal for ArcGIS
CVE-2026-69228 5.3 MEDIUM missing authentication vulnerability in Esri Portal for ArcGIS
CVE-2026-69237 3.8 LOW HTML injection vulnerability in Esri Portal for ArcGIS

IV. Related Vulnerabilities

Same product: Portal for ArcGIS
Same vendor: Esri
Same weakness: CWE-79

V. Comments for CVE-2026-69238

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