CVE-2025-57877 Reflected XSS vulnerability in Portal for ArcGIS.
An authenticated administrator can inject arbitrary JavaScript into the Portal for ArcGIS web interface, potentially compromising user sessions.
- 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-2025-57877?
CVE-2025-57877 is a medium-severity cross-site scripting vulnerability in Esri Portal for Arcgis, published on 29 Sep 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2025-57877?
It affects 1 product.
Products include Esri Portal for Arcgis.
How do I fix CVE-2025-57877?
No fix has been published for CVE-2025-57877 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-2025-57877 being exploited?
There is no known exploitation of CVE-2025-57877 in the wild and no public exploit code.
Other vulnerabilities in Esri Portal for Arcgis
Sources
Also known as GHSA-hwfv-25jm-mmw6.