CVE-2025-21621CWE-79cross-site-scripting

CVE-2025-21621

Medium · published November 26, 2025

CVSS v3.1
6.1
EPSS
0%
Percentile
21.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00296 · 21.1th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2025-11-26T03:15Z
Affected products (1)
ProductVersionsFixed in
geoserver/geoserver< 2.25.02.25.0
References (4)
https://github.com/geoserver/geoserver/commit/dc9ff1c726dd73c884437a123b4ad72b19383c7d · [email protected]https://github.com/geoserver/geoserver/pull/7406 · [email protected]https://github.com/geoserver/geoserver/security/advisories/GHSA-w66h-j855-qr72 · [email protected]https://osgeo-org.atlassian.net/browse/GEOS-11297 · [email protected]
EPSS history
Timeline
  • 25 NOV 21:52Z
    GeoServer Reflected Cross-Site Scripting (XSS) vulnerability in WMS GetFeatureInfo HTML format
    cvelistv5