XSS in Esri Portal For Arcgis
CVE-2025-57876
There is a stored Cross-site Scripting vulnerability in Esri Portal for ArcGIS 11.4 and below 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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.002 (11.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Esri Portal For Arcgis — versions 10.9.1
- Esri Portal For Arcgis — versions 10.9.1, 11.0, 11.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.esri.com/arcgis-blog/products/trust-arcgis/administration/portal-for-arcgis… (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-57876?
- CVE-2025-57876 is a medium-severity vulnerability in Esri Portal For Arcgis, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2025-09-29.
- How severe is CVE-2025-57876?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2025-57876 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.