# CVE-2026-69229: Esri Portal for ArcGIS HTML injection

Source: https://junglewise.ai/threats/cve-2026-69229-esri-portal-for-arcgis-html-injection  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-21. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-69229 · Severity: medium · CVSS 5.4 · Published 2026-08-21

Esri Portal for ArcGIS, a web-based platform for managing geographic information systems and enterprise mapping, contains an HTML injection vulnerability in its Home application. An authenticated user can inject malicious HTML code to alter the appearance of pages seen by other users, potentially redirecting them to fraudulent sites, stealing credentials, or spreading malware through the portal interface.

Technologies: [Esri Portal For Arcgis](https://junglewise.ai/threats/technologies/portal-for-arcgis). Vendors: [Esri](https://junglewise.ai/threats/vendors/esri).

## Quick answers

**Is CVE-2026-69229 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-69229 being exploited in the wild.

**How severe is CVE-2026-69229?** Medium severity, with a CVSS score of 5.4, published 21 August 2026.

**Which products and versions are affected?** Esri Portal For Arcgis 12.0 and prior.

**Is there a fix for CVE-2026-69229?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-69229 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-69229?** Check whether you run Esri Portal For Arcgis at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This is an HTML injection (a form of reflected or stored cross-site scripting) vulnerability in the Portal for ArcGIS Home application. The vulnerability exists in versions 12.0 and prior, affecting ArcGIS Enterprise releases 11.1, 11.3, 11.5, and 12.0. The attack requires an authenticated attacker with access to the portal; there are no known preconditions around network accessibility beyond standard portal access. An attacker can inject arbitrary HTML to modify page content viewed by other users. A patch is available, and users are advised to upgrade to the latest long-term support release.

## Affected products

- Esri Portal for ArcGIS 12.0 and prior

## Timeline

- 2026-08-21: disclosed

## References

- [https://www.esri.com/arcgis-blog/products/arcgis-enterprise/administration/august-2026-arcgis-security-bulletin](https://www.esri.com/arcgis-blog/products/arcgis-enterprise/administration/august-2026-arcgis-security-bulletin)

## Related threats

- [Esri Portal for ArcGIS reflected cross-site scripting](https://junglewise.ai/threats/cve-2026-50096-there-is-a-reflected-cross-site-scripting-vulnerability-in-esri)
- [Esri Portal for ArcGIS reflected cross-site scripting](https://junglewise.ai/threats/cve-2026-33520-there-is-a-reflected-cross-site-scripting-vulnerability-in-esri)
- [Esri Portal for ArcGIS authentication bypass in admin API](https://junglewise.ai/threats/cve-2026-69227-a-flaw-in-portal-for-arcgis-allows-unauthenticated-access-to)
- [Esri Portal for ArcGIS account creation bypass in sharing endpoint](https://junglewise.ai/threats/cve-2026-69226-a-flaw-in-portal-for-arcgis-allows-unauthenticated-users-to)
- [Esri Portal for ArcGIS LDAP injection in administrative functionality](https://junglewise.ai/threats/cve-2026-10759-a-flaw-in-portal-for-arcgis-could-allow-ldap-injection-through)