CVE-2025-55104 BUG-000173918 - ArcGIS Enterprise Sites has a security vulnerability.

Medium 4.8 Published 21 Aug 2025 Updated 21 Aug 2025

An authenticated user can inject stored XSS payloads into ArcGIS Enterprise Sites, allowing arbitrary JavaScript execution in victims' browsers.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2025-55104?

CVE-2025-55104 is a medium-severity cross-site scripting vulnerability in Esri Portal for Arcgis, published on 21 Aug 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-79

Which versions are affected by CVE-2025-55104?

It affects 1 product.

Products include Esri Portal for Arcgis.

How do I fix CVE-2025-55104?

No fix has been published for CVE-2025-55104 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-55104 being exploited?

There is no known exploitation of CVE-2025-55104 in the wild and no public exploit code.

All Esri Portal for Arcgis vulnerabilities

Sources

Also known as GHSA-qm4j-vv5x-mhmj.