> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/ja/web-vulnerabilities/owasp-top-10-vulnerabilities/vulnerability-xml-external-entity-injection-xxe/xxe-vulnerability-file-reader-web-penetration-testing.md).
# XXE 脆弱性ファイル読み取り
Web アプリケーションのペネトレーションテスト、悪用フロー、ペイロード検証、影響確認、修復の文脈のための XXE 脆弱性ファイル読み取りメモ。
## XXEインジェクションの悪用
TXTファイルのアップロード: 拒否されました。XMLファイルのみ受け付けられます。
```
こんにちは、これはテストです
```
フォーマットのクエリ:
```xml
Example PostExample DescriptionExample Markdown
```
読み取り用の外部エンティティを含むXMLファイルの送信 `/etc/passwd`:
```xml
]>
Example PostExample Description&xxe;
```
結果: の内容が `/etc/passwd` 表示されます。
---
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