# CVE-2026-69234: Esri Portal for ArcGIS reflected cross-site scripting

Source: https://junglewise.ai/threats/cve-2026-69234-esri-portal-for-arcgis-reflected-cross-site-scripting  
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-2026-69234 · Severity: medium · CVSS 6.1 · Published 2026-08-21

Portal for ArcGIS is Esri's enterprise portal platform used by organizations to manage and share geographic data and mapping applications. A reflected cross-site scripting (XSS) vulnerability in versions 11.5 and earlier allows attackers to craft malicious links that execute arbitrary JavaScript in users' browsers, potentially stealing session credentials, data, or performing unauthorized actions on behalf of the victim.

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-2026-69234 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-69234 being exploited in the wild.

**How severe is CVE-2026-69234?** Medium severity, with a CVSS score of 6.1, published 21 August 2026.

**Which products and versions are affected?** Esri ArcGIS Enterprise 11.1, 11.3, 11.5; Esri ArcGIS Web App Builder developer edition; Esri Portal For Arcgis 11.5 and prior.

**Is there a fix for CVE-2026-69234?** 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-2026-69234 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-69234?** Check whether you run Esri ArcGIS Enterprise, Esri ArcGIS Web App Builder or 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

A reflected XSS vulnerability exists in Esri Portal for ArcGIS versions 11.5 and prior. The vulnerability allows an unauthenticated remote attacker to inject malicious JavaScript through a crafted URL; when a user clicks the link, the malicious code executes in their browser with the user's privileges. No authentication is required to construct or distribute the exploit link, though successful exploitation depends on user interaction (clicking the link). Attackers can steal session tokens, modify data, or perform actions as the victim. Patches are available for ArcGIS Enterprise 11.1, 11.3, and 11.5; users should upgrade to the latest long-term support release.

## Affected products

- Esri Portal for ArcGIS 11.5 and prior
- Esri ArcGIS Enterprise 11.1, 11.3, 11.5
- Esri ArcGIS Web App Builder developer edition

## 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)