FKIE_CVE-2026-33159

Vulnerability from fkie_nvd - Published: 2026-03-24 18:16 - Updated: 2026-03-26 17:08
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Summary
Craft CMS is a content management system (CMS). From version 4.0.0-RC1 to before version 4.17.8 and from version 5.0.0-RC1 to before version 5.9.14, guest users can access Config Sync updater index, obtain signed data, and execute state-changing Config Sync actions (regenerate-yaml, apply-yaml-changes) without authentication. This issue has been patched in versions 4.17.8 and 5.9.14.
References
security-advisories@github.comhttps://github.com/craftcms/cms/commit/7f0ead833f7c2b91ae12003caad833479dd08592Patch
security-advisories@github.comhttps://github.com/craftcms/cms/releases/tag/4.17.8Release Notes
security-advisories@github.comhttps://github.com/craftcms/cms/releases/tag/5.9.14Release Notes
security-advisories@github.comhttps://github.com/craftcms/cms/security/advisories/GHSA-6mrr-q3pj-h53wVendor Advisory
Impacted products
Vendor Product Version
craftcms craft_cms *
craftcms craft_cms *
craftcms craft_cms 4.0.0
craftcms craft_cms 4.0.0
craftcms craft_cms 4.0.0
craftcms craft_cms 4.0.0
craftcms craft_cms 5.0.0
craftcms craft_cms 5.0.0
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6D076F04-8397-4ED0-8428-6D04B786A0A1",
              "versionEndExcluding": "4.17.8",
              "versionStartExcluding": "4.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7ADCA708-F32E-4943-B523-CF5029C48A50",
              "versionEndExcluding": "5.9.14",
              "versionStartExcluding": "5.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:craftcms:craft_cms:4.0.0:-:*:*:*:*:*:*",
              "matchCriteriaId": "610F6DE9-720F-45B3-81D5-18E7F6B090FD",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:craftcms:craft_cms:4.0.0:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "CC2F40FC-7C27-456A-B16D-679410D1D5CF",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:craftcms:craft_cms:4.0.0:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "FBAA8227-04F8-404C-907B-B0162B325F5A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:craftcms:craft_cms:4.0.0:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "21B28E2C-327A-4CE6-ACAD-97E459712A55",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:craftcms:craft_cms:5.0.0:-:*:*:*:*:*:*",
              "matchCriteriaId": "1C7461CF-35AB-48E1-88B6-956DAE1D2AB4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:craftcms:craft_cms:5.0.0:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "8D8E02D1-601A-4E2B-B619-4775BFDB72D0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Craft CMS is a content management system (CMS). From version 4.0.0-RC1 to before version 4.17.8 and from version 5.0.0-RC1 to before version 5.9.14, guest users can access Config Sync updater index, obtain signed data, and execute state-changing Config Sync actions (regenerate-yaml, apply-yaml-changes) without authentication. This issue has been patched in versions 4.17.8 and 5.9.14."
    },
    {
      "lang": "es",
      "value": "Craft CMS es un sistema de gesti\u00f3n de contenido (CMS). Desde la versi\u00f3n 4.0.0-RC1 hasta antes de la versi\u00f3n 4.17.8 y desde la versi\u00f3n 5.0.0-RC1 hasta antes de la versi\u00f3n 5.9.14, los usuarios invitados pueden acceder al \u00edndice del actualizador de Config Sync, obtener datos firmados y ejecutar acciones de Config Sync que cambian el estado (regenerate-yaml, apply-yaml-changes) sin autenticaci\u00f3n. Este problema ha sido parcheado en las versiones 4.17.8 y 5.9.14."
    }
  ],
  "id": "CVE-2026-33159",
  "lastModified": "2026-03-26T17:08:48.920",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 6.9,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-03-24T18:16:09.907",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/craftcms/cms/commit/7f0ead833f7c2b91ae12003caad833479dd08592"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/craftcms/cms/releases/tag/4.17.8"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/craftcms/cms/releases/tag/5.9.14"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/craftcms/cms/security/advisories/GHSA-6mrr-q3pj-h53w"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
        },
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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