XSS in Esri Portal For Arcgis
CVE-2025-55107
There is a stored Cross-site Scripting vulnerability in Esri Portal for ArcGIS Enterprise Sites versions 10.9.1 – 11.4 that may allow a remote, authenticated attacker to inject malicious a file with an embedded xss script which when loaded could potentially execute arbitrary JavaScript code in the victim’s browser. The privileges required to execute this attack are high. The attack could disclose a privileged token which may result in the attacker gaining full control of the Portal.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.002 (13.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Esri Portal_for_arcgis
- Esri Portal For Arcgis Enterprise Sites — versions 10.9.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- psirt@esri.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-55107?
- CVE-2025-55107 is a medium-severity vulnerability in Esri Portal For Arcgis, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2025-08-21.
- How severe is CVE-2025-55107?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2025-55107 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.