CVE-2026-69238 HTML injection vulnerability in Esri Portal for ArcGIS
A remote privileged attacker can inject arbitrary HTML into the Portal for ArcGIS Home application, potentially leading to code execution or security bypass.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-69238?
CVE-2026-69238 is a low-severity cross-site scripting vulnerability in Esri Portal for Arcgis, published on 21 Aug 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
There is an HTML injection vulnerability in Esri Portal for ArcGIS versions 11.5 and prior that allows a remote, highly priviliged attacker to insert arbitrary HTML into the Portal for ArcGIS Home application. Users working with ArcGIS Enterprise 11.1, 11.3, and 11.5 are encouraged to patch. All users are advised to upgrade to the latest long-term support release.
Weakness: CWE-79
Which versions are affected by CVE-2026-69238?
It affects 1 product.
Products include Esri Portal for Arcgis.
How do I fix CVE-2026-69238?
No fix has been published for CVE-2026-69238 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-2026-69238 being exploited?
There is no known exploitation of CVE-2026-69238 in the wild and no public exploit code.
Other vulnerabilities in Esri Portal for Arcgis
Sources
Also known as GHSA-5v9j-3f6c-93pf.