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
The video above plays from Munowatch's own CDN with zero authentication — any b-cdn.net URL is publicly accessible.
The API returned
playingUrl for Wonderful World
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.
Wonderful World
Psychology professor and writer Eun Soo Hyun's world shatters when her son suffers an unpunished injustice. Seeking vengeance, she unexpectedly discovers solace helping others embroiled in comparable cryptic cases.
API Response Evidence — Vulnerability Proof
Endpoint called
GET /api/preview/v2/55808/0
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
64
video_name
1-Wonderful World-VJ IVO.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": 55808,
"video_title": "Wonderful World",
"description": "Psychology professor and writer Eun Soo Hyun's world shatters when her son suffers an unpunished injustice. Seeking vengeance, she unexpectedly discovers solace helping others embroiled in comparable cryptic cases.",
"video_name": "1-Wonderful World-VJ IVO.mp4",
"filehistory": "",
"openload": "0",
"embedurl": "",
"serverhost": "64",
"allow_openload": "0",
"full_video_name": "",
"duration": "30h 22m",
"thumbnail": "https://apposters.b-cdn.net/laba/yo/naki/MUnX54i2ur9068.jpg",
"tfilehistory": "",
"category_id": 5,
"language_id": 1,
"recording_date": "2025-03-25",
"age_id": "18 +",
"location": 1,
"tab_category_id": 5,
"series_code": "51071",
"access": "1",
"paid_for": "1",
"new_movie": "1",
"priority": "No",
"size": "282.3 MB",
"create_date": "2025-03-25 03:03:02",
"schedule_date": "25.03.2025 10:19:40 AM",
"user_id": 1118356,
"vj_id": 27,
"video_status_id": 0,
"network_id": "45.221.10.185",
"user_access": "deny",
"notification": "No",
"secduration": "109320.000000",
"issubscriber": false,
"genre": "Series",
"vjname": "Vj Ivo",
"trailer_playing_url": "",
"episodes": 27,
"episode_state": "NEXT",
"nxt_eps": "EPS 2",
"nxt_eps_id": 55809,
"nxt_eps_title": "Wonderful World 2",
"nxt_ldur": 0,
"nxt_playing_url": "https://munowatch.co/clips/ELI.mp4",
"playingUrl": "https://munowatch.co/clips/ELI.mp4",
"ldur": 529,
"session_id": "cb99afb5b31411a57538a97393de0e2e",
"device": "web",
"lang_name": "English to Luganda",
"vjrelease": "1 year ago",
"mstatus": false,
"kstatus": "",
"substatus": "EXPIRED"
}