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CVE-2023-4278

Estado: ModificadaAlta (7.5)—

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.0.18 does not have proper checks in place during registration allowing anyone to register on the site as an instructor. They can then add courses and/or posts.

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)

Stylemixthemes — Masterstudy LMS

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-4278",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-4278",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-23T16:07:59.635969Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "contact@wpscan.com",
      "affectedData": [
        {
          "vendor": "Unknown",
          "product": "MasterStudy LMS WordPress Plugin",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "3.0.18",
              "versionType": "custom"
            }
          ],
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2023-09-11T20:15:11.813",
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/175007/WordPress-Masterstudy-LMS-3.0.17-Account-Creation.html",
      "source": "contact@wpscan.com"
    },
    {
      "url": "https://wpscan.com/vulnerability/cb3173ec-9891-4bd8-9d05-24fe805b5235",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "contact@wpscan.com"
    },
    {
      "url": "http://packetstormsecurity.com/files/175007/WordPress-Masterstudy-LMS-3.0.17-Account-Creation.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://wpscan.com/vulnerability/cb3173ec-9891-4bd8-9d05-24fe805b5235",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "The MasterStudy LMS WordPress Plugin WordPress plugin before 3.0.18 does not have proper checks in place during registration allowing anyone to register on the site as an instructor. They can then add courses and/or posts."
    },
    {
      "lang": "es",
      "value": "El complemento de WordPress MasterStudy LMS WordPress anterior a 3.0.18 no cuenta con controles adecuados durante el registro, lo que permite que cualquiera se registre en el sitio como instructor. Luego pueden agregar cursos y/o publicaciones."
    }
  ],
  "lastModified": "2026-06-17T06:37:27.807",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:stylemixthemes:masterstudy_lms:*:*:*:*:*:wordpress:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E340C09E-9F32-4E05-A7F8-3912BB4FDDE0",
              "versionEndExcluding": "3.0.18"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "contact@wpscan.com"
}