« Back to list

CVE-2021-20673

Status: ModifiedMedium (4.8)—

Stored cross-site scripting vulnerability in Admin Page of GROWI (v4.2 Series) versions from v4.2.0 to v4.2.7 allows remote authenticated attackers to inject an arbitrary script via unspecified vectors.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Weseek — Growi

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2021-20673",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 3.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 4.8,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 1.7
      }
    ]
  },
  "affected": [
    {
      "source": "vultures@jpcert.or.jp",
      "affectedData": [
        {
          "vendor": "WESEEK, Inc.",
          "product": "GROWI (v4.2 Series)",
          "versions": [
            {
              "status": "affected",
              "version": "versions from v4.2.0 to v4.2.7"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-03-10T10:15:13.053",
  "references": [
    {
      "url": "https://jvn.jp/en/jp/JVN86438134/index.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "vultures@jpcert.or.jp"
    },
    {
      "url": "https://weseek.co.jp/security/2021/03/09/vulnerability/growi-prevent-xss5/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "vultures@jpcert.or.jp"
    },
    {
      "url": "https://jvn.jp/en/jp/JVN86438134/index.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://weseek.co.jp/security/2021/03/09/vulnerability/growi-prevent-xss5/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Stored cross-site scripting vulnerability in Admin Page of GROWI (v4.2 Series) versions from v4.2.0 to v4.2.7 allows remote authenticated attackers to inject an arbitrary script via unspecified vectors."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de tipo cross-site scripting reflejado debido a una comprobación insuficiente de los parámetros de consulta URL en GROWI (serie v4.2) versiones desde v4.2.0 hasta v4.2.7, permite a atacantes remotos inyectar un script arbitrario por medio de vectores no especificados"
    }
  ],
  "lastModified": "2026-06-17T03:34:13.453",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:weseek:growi:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BF992FE7-A7D2-4FD9-ACF4-3B2B41287F2B",
              "versionEndIncluding": "4.2.7",
              "versionStartIncluding": "4.2.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "vultures@jpcert.or.jp"
}