이 페이지는 아직 한국어로 제공되지 않으며 번역 작업 중입니다. 번역에 관한 질문이나 의견이 있으시면 언제든지 저희에게 연락해 주십시오.

Metadata

ID: javascript-browser-security/event-check-origin

Language: JavaScript

Severity: Warning

Category: Security

Description

Not checking the rule origin can lead to XSS attacks. Always check the event origin.

Learn More

Non-Compliant Code Examples

window.addEventListener('message', (event) => {
  processing();
})

Compliant Code Examples

window.addEventListener('message', (event) => {
  if (event.origin != 'https://app.domain.tld') {
    throw new Error('invalid origin')
  }

  processing();
})
https://static.datadoghq.com/static/images/logos/github_avatar.svg https://static.datadoghq.com/static/images/logos/vscode_avatar.svg jetbrains

Seamless integrations. Try Datadog Code Analysis