CVE-2026-69236 stored cross site scripting issue in Esri Portal for ArcGIS
A remote privileged attacker can inject malicious JavaScript into Esri Portal for ArcGIS, leading to arbitrary code execution in victim browsers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-69236?
CVE-2026-69236 is a medium-severity cross-site scripting vulnerability in Esri Portal for Arcgis, published on 21 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
There is a stored cross site scripting issue in Esri Portal for ArcGIS versions 12.1 and prior that may allow a remote, privileged attacker to inject malicious code that could potentially execute arbitrary JavaScript in a victim’s browser. Users working with ArcGIS Enterprise 11.1, 11.3, 11.5, 12.0 or 12.1 are encouraged to patch. All users are advised to upgrade to the latest long-term support release and apply the patch.
Weakness: CWE-79
Which versions are affected by CVE-2026-69236?
It affects 1 product.
Products include Esri Portal for Arcgis.
How do I fix CVE-2026-69236?
No fix has been published for CVE-2026-69236 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-69236 being exploited?
There is no known exploitation of CVE-2026-69236 in the wild and no public exploit code.
Other vulnerabilities in Esri Portal for Arcgis
Sources
Also known as GHSA-xv5h-ppvh-6vp3.