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CVE-2025-20378

Estado: AnalizadaMedia (6.1)—

In Splunk Enterprise versions below 10.0.1, 9.4.5, 9.3.7, 9.2.9, and Splunk Cloud Platform versions below 10.0.2503.5, 9.3.2411.111, and 9.3.2408.121, an unauthenticated attacker could craft a malicious URL using the `return_to` parameter of the Splunk Web login endpoint. When an authenticated user visits the malicious URL, it could cause an unvalidated redirect to an external malicious site. To be successful, the attacker has to trick the victim into initiating a request from their browser. The unauthenticated attacker should not be able to exploit the vulnerability at will.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Splunk — SplunkSplunk — Splunk Cloud Platform

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-20378",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-20378",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-11-12T20:47:32.175559Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@cisco.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 3.1,
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 1.6
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.1,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "Splunk",
          "product": "Splunk Enterprise",
          "versions": [
            {
              "status": "affected",
              "version": "10.0",
              "lessThan": "10.0.1",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "9.4",
              "lessThan": "9.4.5",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "9.3",
              "lessThan": "9.3.7",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "9.2",
              "lessThan": "9.2.9",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Splunk",
          "product": "Splunk Cloud Platform",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.2503",
              "lessThan": "10.0.2503.5",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "9.3.2411",
              "lessThan": "9.3.2411.111",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "9.3.2408",
              "lessThan": "9.3.2408.121",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-11-12T18:15:34.847",
  "references": [
    {
      "url": "https://advisory.splunk.com/advisories/SVD-2025-1101",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@cisco.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-601"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Splunk Enterprise versions below 10.0.1, 9.4.5, 9.3.7, 9.2.9, and Splunk Cloud Platform versions below 10.0.2503.5, 9.3.2411.111, and 9.3.2408.121, an unauthenticated attacker could craft a malicious URL using the `return_to` parameter of the Splunk Web login endpoint. When an authenticated user visits the malicious URL, it could cause an unvalidated redirect to an external malicious site. To be successful, the attacker has to trick the victim into initiating a request from their browser. The unauthenticated attacker should not be able to exploit the vulnerability at will."
    }
  ],
  "lastModified": "2026-06-17T08:41:38.777",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FE00218E-F8B2-42DA-9E4E-D7A00B657B93",
              "versionEndExcluding": "9.2.9",
              "versionStartIncluding": "9.2.0"
            },
            {
              "criteria": "cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C6257ADA-AB6E-4679-A41B-BCE79CE8D573",
              "versionEndExcluding": "9.3.7",
              "versionStartIncluding": "9.3.0"
            },
            {
              "criteria": "cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "30970DF3-6DA7-4FAB-B234-3226F47F9C87",
              "versionEndExcluding": "9.4.5",
              "versionStartIncluding": "9.4.0"
            },
            {
              "criteria": "cpe:2.3:a:splunk:splunk:10.0.0:*:*:*:enterprise:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "259A3F4B-E4D2-48BC-9AE9-C37DE94987D5"
            },
            {
              "criteria": "cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "97D8397F-D372-4481-901A-0BC282B09DD7",
              "versionEndExcluding": "9.3.2408.121",
              "versionStartIncluding": "9.3.2408"
            },
            {
              "criteria": "cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F134529C-FFD7-4B2F-AE4C-6DEA847F4714",
              "versionEndExcluding": "9.3.2411.111",
              "versionStartIncluding": "9.3.2411"
            },
            {
              "criteria": "cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E82D5593-83EE-4B20-ABDD-937AD94D6DB1",
              "versionEndExcluding": "10.0.2503.5",
              "versionStartIncluding": "10.0.2503"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}