CVE-2025-21621

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2025-21621
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21621.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-21621
Aliases
Published
2025-11-25T21:52:11Z
Modified
2026-08-12T14:52:30Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
GeoServer Reflected Cross-Site Scripting (XSS) vulnerability in WMS GetFeatureInfo HTML format
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21621.json"
}
References

Affected packages

Git / github.com/geoserver/geoserver

Affected ranges

Type
GIT
Repo
https://github.com/geoserver/geoserver
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
55dc8c632219161aa0a1d115ec93e6d700e3b97a
Fixed
dc9ff1c726dd73c884437a123b4ad72b19383c7d
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:geoserver:geoserver:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.25.0"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

2.*
2.11-beta
2.21-M0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21621.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "304143921670282980344165642834298034385",
                "69425362178033528593940703493127584809",
                "61581086786685673862882248908854167088",
                "192920088757599760416120378948530642714",
                "240832705630790953029570445138883683749",
                "208293811668401471830488450298961494331",
                "339810986985387919392014410702078517272",
                "183643863772292226796229508880572084658",
                "265508811185593093288067607100366029325",
                "283983633182392005647995609671899455028",
                "289623306617053730666568647858173412159",
                "36414781463002635162671122812121510244",
                "150082061794064175532556469463654880870",
                "290640940200560937506480662058605177222",
                "126359404159835560919522246053236138446",
                "130216415808421990729810051238126307357",
                "259703568808090652397710696170960914372",
                "116465866168401548155513235915268850291",
                "60411145620372664215350091930395726580",
                "308880315474470337214973885477032069450",
                "270218511811788907423793502736519301383",
                "217904410638450578415198349202197919520",
                "310191035584785380202977115545597652471",
                "259782448837144607068942274498368253814",
                "98651410200881163305868947844222380895"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2025-21621-0d20b4b2",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/geoserver/geoserver/commit/dc9ff1c726dd73c884437a123b4ad72b19383c7d",
        "target": {
            "file": "src/wms/src/test/java/org/geoserver/wms/featureinfo/HTMLFeatureInfoOutputFormatTest.java"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "325726358613099458862193558113761225184",
                "326724414226326793091402809624040308759",
                "300558453433719580123825628169805957325",
                "259310657788014039438730385768290134575",
                "92683004693753593881687826396647101794",
                "10556451985284442405850329125017121348",
                "99783030236360265685130620643536528416",
                "155044097411897404876165721848872512974"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2025-21621-5a546fe2",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/geoserver/geoserver/commit/dc9ff1c726dd73c884437a123b4ad72b19383c7d",
        "target": {
            "file": "src/wms/src/main/java/org/geoserver/wms/featureinfo/FreeMarkerTemplateManager.java"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "101730600859228701056700742042750452769",
            "length": 652
        },
        "id": "CVE-2025-21621-97edf068",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/geoserver/geoserver/commit/dc9ff1c726dd73c884437a123b4ad72b19383c7d",
        "target": {
            "file": "src/wms/src/main/java/org/geoserver/wms/featureinfo/FreeMarkerTemplateManager.java",
            "function": "getTemplate"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "238160103101791286773899863303668683907",
            "length": 973
        },
        "id": "CVE-2025-21621-e78eaed4",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/geoserver/geoserver/commit/dc9ff1c726dd73c884437a123b4ad72b19383c7d",
        "target": {
            "file": "src/wms/src/test/java/org/geoserver/wms/featureinfo/HTMLFeatureInfoOutputFormatTest.java",
            "function": "testAutoEscaping"
        }
    }
]
vanir_signatures_modified 
"2026-08-12T14:52:30Z"