| タイトル | chatwoot 4.11.1 Business Logic Errors |
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| 説明 | Summary
The Chatwoot contains a business logic vulnerability that allows attackers to bypass the intended signup restriction mechanism.
The application checks the response from the server (signupEnabled - Chatwoot config value) to determine whether new user registration is permitted. By intercepting and modifying the server response (using a proxy tool such as Burp Suite), an attacker can change the value of signupEnabled from false to true.
Because the server does not properly enforce this restriction with server-side validation, the manipulated value is accepted, allowing unauthorized users to register accounts (administrative) even when the signup functionality is intended to be disabled.
Details
Vulnerable Endpoint:
GET /app/login HTTP/2
Host: chatwoot.example.com |
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| ユーザー | Zabi_Ullah (UID 96130) |
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| 送信 | 2026年03月05日 07:35 (7 月 ago) |
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| モデレーション | 2026年03月27日 14:48 (22 days later) |
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| ステータス | 承諾済み |
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| VulDBエントリ | 353877 [chatwoot 迄 4.11.1 Signup Endpoint /app/login signupEnabled 特権昇格] |
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| ポイント | 17 |
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