Live › vulnerability › CVE-2026-33520
Go to dashboardEsri Portal for ArcGIS versions 12.1 and prior reflect unsanitized input, so a crafted link can run attacker JavaScript in the victim's browser when clicked. The attacker gets the victim's session context in the Portal page, which can include access to the victim's data and actions.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-26 18:31 UTC. All times on this page are UTC.
Teams that run Esri Portal for ArcGIS at version 12.1 or earlier are exposed. The sources do not say which deployment setups or roles are required for the crafted link to work. Teams on newer supported versions are not listed as affected.
No product ranges from the sources yet.
12.1 and prior are listed as affected.12.1 and prior, as the advisory describes for supported releases.Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
There is a reflected cross site scripting vulnerability in Esri Portal for ArcGIS versions 12.1 and prior which may allow a remote, unauthenticated attacker to create a crafted link which when clicked could potentially execute arbitrary JavaScript code in the victim’s browser. A patch is provided for impacted ArcGIS Server software in General Availability and Extended support status, which includes versions 11.5. Other versions are in mature or retired status, which are not patch eligible. Users working with unlisted versions are advised to upgrade and apply the patch.
This page as .md · .json · in your agent: get_signal("CVE-2026-33520")
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