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CVE-2021-25121

Estado: ModificadaMedia (6.5)—

The Rating by BestWebSoft WordPress plugin before 1.6 does not validate the submitted rating, allowing submission of long integer, causing a Denial of Service on the post/page when a user submit such rating

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 (1)

Bestwebsoft — Rating

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-25121",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "contact@wpscan.com",
      "affectedData": [
        {
          "vendor": "Unknown",
          "product": "Rating by BestWebSoft",
          "versions": [
            {
              "status": "affected",
              "version": "1.6",
              "lessThan": "1.6",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-06-20T11:15:09.043",
  "references": [
    {
      "url": "https://wpscan.com/vulnerability/efb1ddef-2123-416c-a932-856d41ed836d",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "contact@wpscan.com"
    },
    {
      "url": "https://wpscan.com/vulnerability/efb1ddef-2123-416c-a932-856d41ed836d",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "contact@wpscan.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-191"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-191"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Rating by BestWebSoft WordPress plugin before 1.6 does not validate the submitted rating, allowing submission of long integer, causing a Denial of Service on the post/page when a user submit such rating"
    },
    {
      "lang": "es",
      "value": "El plugin Rating by BestWebSoft WordPress anterior a la versión 1.6 no valida la valoración enviada, permitiendo el envío de enteros largos, lo que provoca una denegación de servicio en la entrada/página cuando un usuario envía dicha valoración"
    }
  ],
  "lastModified": "2026-06-17T03:41:29.877",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:bestwebsoft:rating:*:*:*:*:*:wordpress:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FF13E116-31C0-414D-BDFD-41A46EE06C7E",
              "versionEndExcluding": "1.6"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "contact@wpscan.com"
}