Unsanitized user input in React inner HTML method (XSS)

• Rule ID: javascript_react_dangerously_set_inner_html
• Languages: javascript
• Source: dangerously_set_inner_html.yml

Description

There are Cross-Site Scripting (XSS) vulnerabilites when using React's dangerouslySetInnerHTML with unsanitized data.

Remediations

✅ Sanitize data when using dangerouslySetInnerHTML

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

Resources

• OWASP Cross-Site Scripting (XSS) Cheatsheet

Associated CWE

• CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

OWASP Top 10

• A03:2021 - Injection

Configuration

To skip this rule during a scan, use the following flag

bearer scan /path/to/your-project/ --skip-rule=javascript_react_dangerously_set_inner_html

To run only this rule during a scan, use the following flag

bearer scan /path/to/your-project/ --only-rule=javascript_react_dangerously_set_inner_html