VulnerabilityAnalyzed

CVE-2025-21621

GeoServer is an open source server that allows users to share and edit geospatial data.

MEDIUM 6.1EPSS 0.30%

Does this matter?

Lower severity and a low EPSS score (0.30%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS: 0.30% probability · 22th percentile
CISA KEV: Not listed
Weakness: CWE-79
Affected: geoserver/geoserver
Source: security-advisories@github.com

References

https://github.com/geoserver/geoserver/commit/dc9ff1c726dd73c884437a123b4ad72b19383c7dPatch
https://github.com/geoserver/geoserver/pull/7406Issue Tracking
https://github.com/geoserver/geoserver/security/advisories/GHSA-w66h-j855-qr72Vendor Advisory
https://osgeo-org.atlassian.net/browse/GEOS-11297Issue Tracking

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.