CVE-2026-69233: stored cross site scripting issue in Esri Portal for ArcGIS
There is a stored cross site scripting issue in Esri Portal for ArcGIS versions 11.5 and prior that may allow a remote, administratively privileged attacker to inject malicious code that could potentially execute arbitrary in a victim’s browser. 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.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue?
Exploitation requires a remote attacker with administrative privileges in Portal for ArcGIS. The attacker can store malicious code that may later execute in another user's browser.
Which deployments should be prioritized for remediation?
Portal for ArcGIS version 11.5 and earlier is affected. The advisory specifically encourages users of ArcGIS Enterprise 11.1, 11.3, and 11.5 to patch, and advises all users to upgrade to the latest long-term support release.
What is the impact if exploitation succeeds?
A successful attack may cause attacker-supplied code to execute in a victim's browser. The reported impact includes limited confidentiality and integrity effects, with no reported availability impact.