HTML Injection Vulnerability in Esri Portal for ArcGIS
CVE-2026-69237

3.8LOW

Key Information:

Vendor

Esri

Status
Portal For Arcgis
Vendor
CVE Published:
21 August 2026

What is CVE-2026-69237?

An HTML injection vulnerability exists in Esri Portal for ArcGIS versions 11.3 and earlier, allowing remote attackers with administrative privileges to inject arbitrary HTML through an administrative API. This risk emphasizes the importance of updating to the latest long-term support release to mitigate potential exploitation risks. Users operating ArcGIS Enterprise versions 11.1 and 11.3 should prioritize patching to protect their systems.

Affected Version(s)

Portal for ArcGIS Windows 11.1 <= 11.3

References

https://www.esri.com/arcgis-blog/products/arcgis-enterpri...

CVSS V3.1

Score:
3.8
Severity:
LOW
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.