What is CVE-2025-57871?

CVE-2025-57871 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-2025-57871?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Is CVE-2025-57871 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Esri Portal For Arcgis

CVE-2025-57871

There is a reflected cross site scripting vulnerability in Esri Portal for ArcGIS 11.4 and below that may allow a remote authenticated attacker with administrative access to supply a crafted string which would execute arbitrary JavaScript code in the browser.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (11.2th 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 — versions 10.9.1
Esri Portal_for_arcgis — versions 10.9.1, 11.0, 11.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

psirt@esri.com (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2025-57871?: CVE-2025-57871 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-2025-57871?: Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2025-57871 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.