Craft CMS: Anonymous “generate transform” calls for assets can expose private assets via transform URL_CVE-2026-33160

{
    "lastseen": "",
    "description": "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, an unauthenticated user can call assets/generate-transform with a private assetId, receive a valid transform URL, and fetch transformed image bytes. The endpoint is anonymous and does not enforce per-asset authorization before returning the transform URL. This issue has been patched in versions 4.17.8 and 5.9.14.",
    "published": "2026-03-24T17:30:20.068Z",
    "modified": "2026-03-26T19:52:13.700Z",
    "type": "cve",
    "title": "Craft CMS: Anonymous \"generate transform\" calls for assets can expose private assets via transform URL",
    "source": "GitHub_M",
    "references": "https://github.com/craftcms/cms/security/advisories/GHSA-5pgf-h923-m958\nhttps://github.com/craftcms/cms/commit/7290d91639e\nhttps://github.com/craftcms/cms/releases/tag/4.17.8\nhttps://github.com/craftcms/cms/releases/tag/5.9.14",
    "id": "CVE-2026-33160",
    "bulletinFamily": "",
    "cwe": [
        "CWE-639",
        "CWE-862"
    ],
    "cvelist": null,
    "sourceData": "craftcms cms >= 4.0.0-RC1, < 4.17.8\ncraftcms cms >= 5.0.0-RC1, < 5.9.14",
    "sourceHref": "",
    "cvss": {
        "score": 2.7,
        "severity": "LOW",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "cms",
    "version": ">= 4.0.0-RC1, < 4.17.8",
    "vendor": "craftcms",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}