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Security audit

Douyin API - Videos, Creators, Comments, Search

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed Douyin data API helper; it uses a third-party API key and can retrieve public social-media data, but I found no hidden execution, persistence, or deceptive behavior.

Install only if you are comfortable sending Douyin URLs, identifiers, keywords, and related query parameters to Scavio's API under your API key. Use it for legitimate research, minimize collection of personal/social-graph data, avoid profiling individuals, and respect platform rules and applicable privacy law.

A.I.G

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (8)

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

The skill explicitly enables collection of user profiles, followers, following, liked videos, comments, and live-stream data, but its guardrails focus only on cost, pagination, and data accuracy rather than privacy, consent, or acceptable-use constraints. In this context, the omission increases the risk of surveillance, profiling, or bulk collection of personal/social graph data without adequate user-facing warning or limitation.

Content

No source excerpt is available for this finding.

External Transmission

Medium
Category
Data Exfiltration
Confidence
70% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 128)May include surrounding context.

md
HEADERS = {"Authorization": f"Bearer {API_KEY}"}

# 1. Resolve a share link, then read that video's comments (1 credit each)
video = requests.post(f"{BASE}/api/v1/douyin/video/by-share-url", headers=HEADERS,
    json={"share_url": "https://v.douyin.com/v1zNJi__Teg/"}).json()
aweme_id = video["data"]["aweme_id"]
comments = requests.post(f"{BASE}/api/v1/douyin/video/comments", headers=HEADERS,

External Transmission

Medium
Category
Data Exfiltration
Confidence
70% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 131)May include surrounding context.

md
video = requests.post(f"{BASE}/api/v1/douyin/video/by-share-url", headers=HEADERS,
    json={"share_url": "https://v.douyin.com/v1zNJi__Teg/"}).json()
aweme_id = video["data"]["aweme_id"]
comments = requests.post(f"{BASE}/api/v1/douyin/video/comments", headers=HEADERS,
    json={"aweme_id": aweme_id, "count": 50}).json()

# 2. Resolve a profile URL to a user id, then read the user's posts (1 credit each)

External Transmission

Medium
Category
Data Exfiltration
Confidence
70% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 135)May include surrounding context.

md
json={"aweme_id": aweme_id, "count": 50}).json()

# 2. Resolve a profile URL to a user id, then read the user's posts (1 credit each)
uid = requests.post(f"{BASE}/api/v1/douyin/resolve/user-id", headers=HEADERS,
    json={"url": "https://www.douyin.com/user/"}).json()["data"]["sec_user_id"]
posts = requests.post(f"{BASE}/api/v1/douyin/user/posts", headers=HEADERS,
    json={"sec_user_id": uid, "count": 20}).json()

External Transmission

Medium
Category
Data Exfiltration
Confidence
70% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 137)May include surrounding context.

md
# 2. Resolve a profile URL to a user id, then read the user's posts (1 credit each)
uid = requests.post(f"{BASE}/api/v1/douyin/resolve/user-id", headers=HEADERS,
    json={"url": "https://www.douyin.com/user/"}).json()["data"]["sec_user_id"]
posts = requests.post(f"{BASE}/api/v1/douyin/user/posts", headers=HEADERS,
    json={"sec_user_id": uid, "count": 20}).json()

# 3. Keyword search - 10 credits

External Transmission

Medium
Category
Data Exfiltration
Confidence
70% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 141)May include surrounding context.

json={"sec_user_id": uid, "count": 20}).json()

3. Keyword search - 10 credits

found = requests.post(f"{BASE}/api/v1/douyin/search/videos", headers=HEADERS, json={"keyword": "美食"}).json()

text

External Transmission

Medium
Category
Data Exfiltration
Confidence
60% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 148)May include surrounding context.

curl:

bash
curl -s https://api.scavio.dev/api/v1/douyin/trending \
  -H "Authorization: Bearer $SCAVIO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{}'

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 148)May include surrounding context.

curl:

bash
curl -s https://api.scavio.dev/api/v1/douyin/trending \
  -H "Authorization: Bearer $SCAVIO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{}'

Static analysis

Detected: suspicious.exposed_secret_literal

File appears to expose a hardcoded API secret or token.

Critical
Code
suspicious.exposed_secret_literal
Location
SKILL.md:38