CVE-2026-69229

HTML injection vulnerability in Esri Portal for ArcGIS

Published Aug 21, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
There is an HTML injection vulnerability in Esri Portal for ArcGIS versions 12.0 and prior that allows a remote, authenticated attacker to insert arbitrary HTML into the Portal for ArcGIS Home application. Users working with ArcGIS Enterprise 11.1, 11.3, 11.5 and 12.0 are encouraged to patch. All users are advised to upgrade to the latest long-term support release.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:esri:portal_for_arcgis:*:*:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.1:-:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.1:security_2024_update1:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.1:security_2024_update2:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.1:security_2025_update1:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.1:security_2025_update2:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.1:security_2025_update3:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.1:security_2026_update2:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.2:*:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.3:-:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.3:security_2025_update1:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.3:security_2025_update2:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.3:security_2025_update3:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.3:security_2026_update2:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.4:*:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.5:-:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.5:security_2026_update1:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.5:security_2026_update2:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:12.0:-:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:12.0:security_2026_update1:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:12.0:security_2026_update2:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Esri
Esri portal For Arcgis
Vendors & Products Esri
Esri portal For Arcgis
Type Values Removed Values Added
Description There is an HTML injection vulnerability in Esri Portal for ArcGIS versions 12.0 and prior that allows a remote, authenticated attacker to insert arbitrary HTML into the Portal for ArcGIS Home application. Users working with ArcGIS Enterprise 11.1, 11.3, 11.5 and 12.0 are encouraged to patch. All users are advised to upgrade to the latest long-term support release.
Title HTML injection vulnerability in Esri Portal for ArcGIS
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Esri
Published
Updated
Aug 24, 2026, 1:01 PM
Reserved
Aug 3, 2026, 7:22 PM
Status
Analyzed
Published
Aug 21, 2026, 9:17 PM
Modified
Oct 12, 2026, 4:10 PM