FKIE_CVE-2025-21621

Vulnerability from fkie_nvd - Published: 2025-11-25 22:15 - Updated: 2026-06-17 08:43
Severity
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
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.
References
security-advisories@github.comhttps://github.com/geoserver/geoserver/commit/dc9ff1c726dd73c884437a123b4ad72b19383c7dPatch
security-advisories@github.comhttps://github.com/geoserver/geoserver/pull/7406Issue Tracking
security-advisories@github.comhttps://github.com/geoserver/geoserver/security/advisories/GHSA-w66h-j855-qr72Vendor Advisory
security-advisories@github.comhttps://osgeo-org.atlassian.net/browse/GEOS-11297Issue Tracking
Impacted products
Vendor Product Version
geoserver geoserver *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "geoserver",
          "vendor": "geoserver",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.25.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:geoserver:geoserver:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D74556B8-BDEF-4EC2-98AA-BD99DB2DA4A6",
              "versionEndExcluding": "2.25.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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\u0027s browser through specially crafted SLD_BODY parameters. This issue has been patched in version 2.25.0."
    }
  ],
  "id": "CVE-2025-21621",
  "lastModified": "2026-06-17T08:43:52.390",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-21621",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-11-26T16:02:58.299745Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-11-25T22:15:47.227",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/geoserver/geoserver/commit/dc9ff1c726dd73c884437a123b4ad72b19383c7d"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Issue Tracking"
      ],
      "url": "https://github.com/geoserver/geoserver/pull/7406"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/geoserver/geoserver/security/advisories/GHSA-w66h-j855-qr72"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Issue Tracking"
      ],
      "url": "https://osgeo-org.atlassian.net/browse/GEOS-11297"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.