CVE-2025-21621

Published: Nov 25, 2025Modified: Jun 17, 2026

6.1

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitability: 2.8 / Impact: 2.7

Source: security-advisories@github.com (Secondary)

Description

GeoServer is an open source server that allows users to share and edit geospatial data. Prior to version 2.25.0, a reflected cross-site scripting (XSS) vulnerability exists in the WMS GetFeatureInfo HTML output format that enables a remote attacker to execute arbitrary JavaScript code in a victim's browser through specially crafted SLD_BODY parameters. This issue has been patched in version 2.25.0.

Affected (1)

Products: Geoserver: Geoserver

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Geoserver Geoserver	Before 2.25.0

Related CWEs

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (4)

https://github.com/geoserver/geoserver/commit/dc9ff1c726dd73c884437a123b4ad72b19383c7d

Source: security-advisories@github.com

Patch

https://github.com/geoserver/geoserver/pull/7406

Source: security-advisories@github.com

Issue Tracking

https://github.com/geoserver/geoserver/security/advisories/GHSA-w66h-j855-qr72

Source: security-advisories@github.com

Vendor Advisory

https://osgeo-org.atlassian.net/browse/GEOS-11297

Source: security-advisories@github.com

Issue Tracking

Timeline

No history available yet.