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CVE-2020-13262

Estado: ModificadaMedia (6.1)—

Una inyección de código de tipo Client-Side por medio del marcado Mermaid en GitLab CE/EE versiones 12.9 y posteriores hasta la versión 13.0.1, permite una carga útil de Mermaid especialmente diseñada para peticiones PUT en nombre de otros usuarios al cliquear en un enlace

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)

Gitlab — Gitlab

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-13262",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve@gitlab.com",
        "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
      },
      {
        "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": "cve@gitlab.com",
      "affectedData": [
        {
          "vendor": "GitLab",
          "product": "GitLab",
          "versions": [
            {
              "status": "affected",
              "version": ">=12.9, <12.9.8"
            },
            {
              "status": "affected",
              "version": ">=12.10, <12.10.7"
            },
            {
              "status": "affected",
              "version": ">=13.0, <13.0.1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-06-19T22:15:12.647",
  "references": [
    {
      "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13262.json",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@gitlab.com"
    },
    {
      "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/211949",
      "tags": [
        "Broken Link"
      ],
      "source": "cve@gitlab.com"
    },
    {
      "url": "https://hackerone.com/reports/824689",
      "tags": [
        "Permissions Required"
      ],
      "source": "cve@gitlab.com"
    },
    {
      "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13262.json",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/211949",
      "tags": [
        "Broken Link"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://hackerone.com/reports/824689",
      "tags": [
        "Permissions Required"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Client-Side code injection through Mermaid markup in GitLab CE/EE 12.9 and later through 13.0.1 allows a specially crafted Mermaid payload to PUT requests on behalf of other users via clicking on a link"
    },
    {
      "lang": "es",
      "value": "Una inyección de código de tipo Client-Side por medio del marcado Mermaid en GitLab CE/EE versiones 12.9 y posteriores hasta la versión 13.0.1, permite una carga útil de Mermaid especialmente diseñada para peticiones PUT en nombre de otros usuarios al cliquear en un enlace"
    }
  ],
  "lastModified": "2026-06-17T02:52:48.800",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "63B9688C-C8BC-4E06-9A90-688E1A72EED6",
              "versionEndExcluding": "12.9.8",
              "versionStartIncluding": "12.9.0"
            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F76601E6-F6EF-49C4-8FBF-75A24F2ACDED",
              "versionEndExcluding": "12.9.8",
              "versionStartIncluding": "12.9.0"
            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C9ED9593-9837-4849-A890-C2FDDC56C5A1",
              "versionEndExcluding": "12.10.7",
              "versionStartIncluding": "12.10.0"
            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "846CD4C7-BFCB-4DFC-901E-46CCA8ADA56A",
              "versionEndExcluding": "12.10.7",
              "versionStartIncluding": "12.10.0"
            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:13.0.0:*:*:*:community:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "439E1C57-8846-4EB8-A78A-DE6BDAF6CAF5"
            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:13.0.0:*:*:*:enterprise:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F6CA871C-BEFF-4951-AC88-ACA603C25CE1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@gitlab.com"
}