BUG-000173918 - ArcGIS Enterprise Sites has a security vulnerability.

published 2025-08-21 14 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-28578

cvss: 4.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits: 0; none known

A stored cross-site scripting (XSS) vulnerability exists ArcGIS HUB and ArcGIS Enterprise Sites which allows an authenticated user with the ability to create or edit a site to add and store an XSS payload. If this stored XSS payload is triggered by any user attacker supplied JavaScript may execute in the victim's browser.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 14 mo ago (2025-08-21)

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.8	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 Enterprise Sites

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

esri.com /arcgis-blog/products/trust-arcgis/administration/2925891-2
vendor-advisory

Sources

CVE List CVE-2025-55104
NVD CVE-2025-55104

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary