Do not inject unsanitized HTML

문서 > 코드 분석 > Static Analysis Rules > Do not inject unsanitized HTML

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Metadata

ID: typescript-browser-security/react-dangerously-inner-html

Language: TypeScript

Severity: Warning

Category: Security

Description

Always sanitize HTML data before injecting it in the DOM. Use libraries such as DOMPurify before using it.

Non-Compliant Code Examples

const App = () => {
  const data = `lorem <b onmouseover="alert('mouseover');">ipsum</b>`;

  return (
    <div
      dangerouslySetInnerHTML={{__html: data}}
      foobar={{foo: bar}}
    >
    </div>
  );
}

Compliant Code Examples

const App = () => {
  const data = `lorem <b onmouseover="alert('mouseover');">ipsum</b>`;

  return (
    <div
      dangerouslySetInnerHTML={{__html: sanitize(data)}}
    />
  );
}