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 Severance 19 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.
Severance 19
Vj Junior Series 01h 13m 12 months ago

Mark leads a team of office workers whose memories have been surgically divided between their work and personal lives. When a mysterious colleague appears outside of work, it begins a journey to discover the truth about their jobs.

Episodes
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 API Response Evidence — Vulnerability Proof
Endpoint called GET /api/preview/v2/57387/0
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 66
video_name Severance S02E10 Cold Harbor 720p.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": 57387,
    "video_title": "Severance 19",
    "description": "Mark leads a team of office workers whose memories have been surgically divided between their work and personal lives. When a mysterious colleague appears outside of work, it begins a journey to discover the truth about their jobs.",
    "video_name": "Severance S02E10 Cold Harbor 720p.mp4",
    "filehistory": "",
    "openload": "0",
    "embedurl": "",
    "serverhost": "66",
    "allow_openload": "0",
    "full_video_name": "",
    "duration": "01h 13m",
    "thumbnail": "https://apposters.b-cdn.net/laba/yo/naki/wbIgBsObic1281.jpg",
    "tfilehistory": "",
    "category_id": 5,
    "language_id": 1,
    "recording_date": "2025-04-21",
    "age_id": "18 +",
    "location": 1,
    "tab_category_id": 5,
    "series_code": "16067",
    "access": "1",
    "paid_for": "1",
    "new_movie": "1",
    "priority": "No",
    "size": "687.02 MB",
    "create_date": "2025-06-19 10:06:01",
    "schedule_date": "21.04.2025 09:45:12 AM",
    "user_id": 1118356,
    "vj_id": 1,
    "video_status_id": 0,
    "network_id": "45.221.10.185",
    "user_access": "deny",
    "notification": "",
    "secduration": "4410.000000",
    "issubscriber": false,
    "genre": "Series",
    "vjname": "Vj Junior",
    "trailer_playing_url": "",
    "episodes": 19,
    "episode_state": "NEXT",
    "nxt_eps": "EPS  19",
    "nxt_eps_id": 57387,
    "nxt_eps_title": "Severance 19",
    "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": "12 months ago",
    "mstatus": false,
    "kstatus": "",
    "substatus": "EXPIRED"
}