eGovFramework <= 4.3.1 Unauthenticated File Upload via Web Editor Image Upload Endpoints_CVE-2025-34336

{
    "lastseen": "",
    "description": "eGovFramework/egovframe-common-components versions up to and including 4.3.1 contain an unauthenticated file upload vulnerability via the /utl/wed/insertImage.do and /utl/wed/insertImageCk.do image upload endpoints. These controllers accept multipart requests without authentication, pass the uploaded content to a shared upload helper, and store the file on the server under a framework-controlled path. The framework then returns a download URL that can be used to retrieve the uploaded content, including an attacker-controlled Content-Type within the limits of the image upload functionality. While a filename extension whitelist is enforced, the attacker fully controls the file contents. The response MIME type used is also attacker-controlled when the file is served up to version < 4.1.2. Since version 4.1.2, it is possible to download any image uploaded with any whitelisted content type. But any file uploaded other than an image will be served with the `application/octet-stream` content type (the content type is no longer controlled by the attacker since version 4.1.2). This enables an unauthenticated attacker to use any affected application as a persistent file hosting service for arbitrary content under the application's origin. KISA/KrCERT has identified this unpatched vulnerability as \"KVE-2023-5280.\"",
    "published": "2025-11-19T16:20:26.996Z",
    "modified": "2025-11-19T16:48:16.629Z",
    "type": "cve",
    "title": "eGovFramework <= 4.3.1 Unauthenticated File Upload via Web Editor Image Upload Endpoints",
    "source": "VulnCheck",
    "references": "https://www.egovframe.go.kr/eng/sub.do?menuNo=2\nhttps://github.com/eGovFramework/egovframe-common-components\nhttps://pierrekim.github.io/blog/2025-11-20-egovframe-2-vulnerabilities.html\nhttps://pierrekim.github.io/advisories/2025-egovframe.txt\nhttps://www.vulncheck.com/advisories/egovframework-unauthenticated-file-upload-via-web-editor-image-upload-endpoints",
    "id": "CVE-2025-34336",
    "bulletinFamily": "",
    "cwe": [
        "CWE-434"
    ],
    "cvelist": null,
    "sourceData": "eGovFramework/egovframe-common-components eGovFramework/egovframe-common-components 0",
    "sourceHref": "",
    "cvss": {
        "score": 6.9,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
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        "baseScore": 0,
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        "confidentialityImpact": "",
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        "cvssV3": {
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            "baseScore": 0,
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "eGovFramework/egovframe-common-components",
    "version": "0",
    "vendor": "eGovFramework/egovframe-common-components",
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    "ai_score": 0
}