rules:
- id: avoid-render-inline
  metadata:
    owasp: 'A7: Cross-Site Scripting (XSS)'
    cwe: "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"
    references:
    - https://brakemanpro.com/2017/09/08/cross-site-scripting-in-rails#inline-renders---even-worse-than-xss
    category: security
    technology:
    - rails
  message: >-
    'render inline: ...' renders an entire ERB template inline and is dangerous.
    If external data can reach here, this exposes your application
    to server-side template injection (SSTI) or cross-site scripting (XSS) attacks.
    Instead, consider using a partial or another safe rendering method.
  languages: [ruby]
  severity: WARNING
  pattern: 'render inline: ...'