SECURITY RESEARCH PoC  |  The video below plays from Munowatch CDN with NO valid subscription — server-side entitlement not enforced
SECURITY PoC — NO AUTH
THIS MOVIE'S CDN STREAM — No subscription, no login, no auth token required
Per-movie CDN bypass proof:
The API returned playingUrl for Flex X Cop with issubscriber: false, user_access: deny, and paid_for: true.
The video_name + serverhost from the API response are used to construct the CDN URL above — confirming that the CDN file for this specific movie is publicly accessible with no authentication.
Flex X Cop
Vj Ivo Series 32h 41m 2 years ago

Jin I-Soo (Ahn Bo-Hyun) is a 3rd generation member of a chaebol family. He has a childish personality and loves to have fun. Jin I-Soo becomes a detective for a police violent crimes team. He tries to wipe out criminals by using his enormous wealth, personal connections, and his brilliant intelligence. He works with Lee Gang-Hyun (Park Ji-Hyun), who leads the violent crimes team. She is a veteran detective and highly dedicated to catching criminals. She also has smooth social skills. Although Lee Gang-Hyun views Jin I-Soo as a thorn in her side, they begin to work together as partners. She experiences a big change in her deceptive life.

Episodes
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 API Response Evidence — Vulnerability Proof
Endpoint called GET /api/preview/v2/50265/0
User ID used 0 (no user / not logged in)
JWT used Expired Feb 2024 (extracted from APK)
issubscriber false
user_access deny
paid_for YES (premium content)
substatus EXPIRED
serverhost 62
video_name 1- Flex X Cop-VJ IVO.mp4
playingUrl returned YES — URL in response
API playingUrl value https://munowatch.co/clips/ELI.mp4
CDN stream https://harvetz.b-cdn.net/hvt43/kai43/1-%20Flex%20X%20Cop-VJ%20IVO.mp4

Finding: The server sets user_access=deny and issubscriber=false but still returns playingUrl in the same response. Subscription is enforced client-side only — any caller with the expired APK JWT can obtain stream URLs without a subscription. Munowatch CDN (b-cdn.net) serves content with no auth required (direct HTTP Range requests succeed with HTTP 206).

{
    "id": 50265,
    "video_title": "Flex X Cop",
    "description": " Jin I-Soo (Ahn Bo-Hyun) is a 3rd generation member of a chaebol family. He has a childish personality and loves to have fun. Jin I-Soo becomes a detective for a police violent crimes team. He tries to wipe out criminals by using his enormous wealth, personal connections, and his brilliant intelligence. He works with Lee Gang-Hyun (Park Ji-Hyun), who leads the violent crimes team. She is a veteran detective and highly dedicated to catching criminals. She also has smooth social skills. Although Lee Gang-Hyun views Jin I-Soo as a thorn in her side, they begin to work together as partners. She experiences a big change in her deceptive life. ",
    "video_name": "1- Flex X Cop-VJ IVO.mp4",
    "filehistory": "",
    "openload": "0",
    "embedurl": "",
    "serverhost": "62",
    "allow_openload": "0",
    "full_video_name": "",
    "duration": "32h 41m",
    "thumbnail": "https://apposters.b-cdn.net/laba/yo/naki/3AOMmlgafX3156.jpg",
    "tfilehistory": "",
    "category_id": 5,
    "language_id": 1,
    "recording_date": "2024-07-15",
    "age_id": "18 +",
    "location": 1,
    "tab_category_id": 5,
    "series_code": "79499",
    "access": "1",
    "paid_for": "1",
    "new_movie": "1",
    "priority": "No",
    "size": "393.07 MB",
    "create_date": "2024-07-15 03:07:28",
    "schedule_date": "15.07.2024 10:05:49 AM",
    "user_id": 1118356,
    "vj_id": 27,
    "video_status_id": 0,
    "network_id": "154.227.131.200",
    "user_access": "deny",
    "notification": "No",
    "secduration": "117660.000000",
    "issubscriber": false,
    "genre": "Series",
    "vjname": "Vj Ivo",
    "trailer_playing_url": "",
    "episodes": 32,
    "episode_state": "NEXT",
    "nxt_eps": "EPS    2",
    "nxt_eps_id": 50266,
    "nxt_eps_title": "Flex X Cop 2",
    "nxt_ldur": 0,
    "nxt_playing_url": "https://munowatch.co/clips/ELI.mp4",
    "playingUrl": "https://munowatch.co/clips/ELI.mp4",
    "ldur": 0,
    "session_id": "cb99afb5b31411a57538a97393de0e2e",
    "device": "web",
    "lang_name": "English to Luganda",
    "vjrelease": "2 years ago",
    "mstatus": false,
    "kstatus": "",
    "substatus": "EXPIRED"
}