Medium severity · published Nov 25, 2025
CVE-2025-21621
GeoServer Reflected Cross-Site Scripting (XSS) vulnerability in WMS GetFeatureInfo HTML format
6.1
CVSS
0.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GE
geoserver · geoserver
< 2.25.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-21621
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-21621
Patch
https://github.com/geoserver/geoserver/commit/dc9ff1c726dd73c884437a123b4ad72b19383c7d
Issue Tracking
https://github.com/geoserver/geoserver/pull/7406
Vendor Advisory
https://github.com/geoserver/geoserver/security/advisories/GHSA-w66h-j855-qr72
Issue Tracking
https://osgeo-org.atlassian.net/browse/GEOS-11297
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