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CVE-2021-24406

Estado: ModificadaMedia (6.1)—💥 Exploit

The wpForo Forum WordPress plugin before 1.9.7 did not validate the redirect_to parameter in the login form of the forum, leading to an open redirect issue after a successful login. Such issue could allow an attacker to induce a user to use a login URL redirecting to a website under their control and being a replica of the legitimate one, asking them to re-enter their credentials (which will then in the attacker hands)

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Tecnologías afectadas (1)

Gvectors — Wpforo Forum

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-24406",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
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    "cvssMetricV31": [
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        "source": "nvd@nist.gov",
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          "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": "contact@wpscan.com",
      "affectedData": [
        {
          "vendor": "gVectors Team",
          "product": "wpForo Forum",
          "versions": [
            {
              "status": "affected",
              "version": "1.9.7",
              "lessThan": "1.9.7",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-07-06T11:15:09.183",
  "references": [
    {
      "url": "https://wpscan.com/vulnerability/a9284931-555b-4c96-86a3-09e1040b0388",
      "tags": [
        "Exploit",
        "Third Party Advisory"
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      "source": "contact@wpscan.com"
    },
    {
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      "tags": [
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        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "contact@wpscan.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-601"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The wpForo Forum WordPress plugin before 1.9.7 did not validate the redirect_to parameter in the login form of the forum, leading to an open redirect issue after a successful login. Such issue could allow an attacker to induce a user to use a login URL redirecting to a website under their control and being a replica of the legitimate one, asking them to re-enter their credentials (which will then in the attacker hands)"
    },
    {
      "lang": "es",
      "value": "El plugin wpForo Forum de WordPress versiones anteriores a 1.9.7,[ no comprueba el parámetro redirect_to en el formulario de inicio de sesión del foro, conllevando a un problema de redirección abierta tras un inicio de sesión con éxito. Este problema podría permitir a un atacante inducir a un usuario a usar una URL de inicio de sesión que redirigiera a un sitio web bajo su control y que fuera una réplica del legítimo, pidiéndole que volviera a introducir sus credenciales (que luego estarían en manos del atacante)"
    }
  ],
  "lastModified": "2026-06-17T03:39:58.510",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "matchCriteriaId": "BBBF4559-8D68-46F9-8D1C-564DAA7FFF46",
              "versionEndExcluding": "1.9.7"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "contact@wpscan.com"
}