HTTP 400

What is HTTP 400?

An error status code indicating that the server cannot process a request due to invalid client input

In other languages

한국어HTTP 400

클라이언트의 요청이 잘못되었거나 문법 오류로 인해 서버가 처리할 수 없을 때 발생하는 상태 코드

日本語HTTP 400

クライアントからのリクエストが不正である、または構文が正しくないためにサーバーが処理できないことを示すエラーコード。

Related Terms

• SSRFSecurity vulnerability where an attacker forces a server-side application to make unauthorized requests to internal or external resources
• User-AgentA request header that allows network servers to identify the application, operating system, and software version of the client requesting the resource.
• Code InjectionA security vulnerability occurring when an application allows untrusted data to be sent to an interpreter as part of a command or query
• Injection attackSecurity exploit where unauthorized instructions are inserted into a system's input to manipulate its behavior or output.
• XSSA security vulnerability occurring when an application includes untrusted data in a web page without proper validation or escaping, allowing attackers to execute malicious scripts in a user's browser
• CSRFA type of security exploit where a malicious website causes a user's web browser to perform an unwanted action on a trusted site.
• noindexHTML or HTTP directive asking search engines not to include a webpage in search results