CVE-2026-69229 HTML injection vulnerability in Esri Portal for ArcGIS
Remote authenticated attackers can inject arbitrary HTML into the Portal for ArcGIS Home application, potentially leading to script execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-69229?
CVE-2026-69229 is a medium-severity cross-site scripting vulnerability in Esri Portal for Arcgis, published on 21 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
There is an HTML injection vulnerability in Esri Portal for ArcGIS versions 12.0 and prior that allows a remote, authenticated attacker to insert arbitrary HTML into the Portal for ArcGIS Home application. Users working with ArcGIS Enterprise 11.1, 11.3, 11.5 and 12.0 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-2026-69229?
It affects 1 product.
Products include Esri Portal for Arcgis.
How do I fix CVE-2026-69229?
No fix has been published for CVE-2026-69229 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-2026-69229 being exploited?
There is no known exploitation of CVE-2026-69229 in the wild and no public exploit code.
Other vulnerabilities in Esri Portal for Arcgis
Sources
Also known as GHSA-hwjf-fg7r-8gpr.