Esri: >> Portal For Arcgis >> 12.1 Security Vulnerabilities
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.
CVSS Score
6.1
EPSS Score
0.002
Published
2026-08-21
Esri Portal for ArcGIS versions 12.1 and earlier on Windows, Linux and Kubernetes have a missing authentication for critical function vulnerability allows a remote, unauthenticated attacker to access an unprotected API.
CVSS Score
9.8
EPSS Score
0.004
Published
2026-07-07
A Weak Password Recovery Mechanism for Forgotten Password exists in Esri Portal for ArcGIS versions 12.1 and earlier on Windows, Linux and Kubernetes. A remote, unauthorized attacker may assume ownership of a user’s account by manipulating this mechanism. ArcGIS Administrators should configure an email server with ArcGIS Enterprise to facilitate user self-service password recovery. The ability for an administrator to reset a user’s password remains unchanged.
CVSS Score
8.1
EPSS Score
0.003
Published
2026-07-07