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Security audit

Mooc Course Search

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed MOOC course-search helper that sends course search terms to a documented Youdao endpoint and shows no hidden persistence or local system control.

Before installing, understand that course topics you ask about may be sent to Youdao's MOOC search service. Avoid including private personal details in course queries; the package itself does not show local system changes or credential handling.

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 (2)

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 · README.md (reported line 36)May include surrounding context.

示例：

bash
curl --location "https://mcp.study.youdao.com/public/mm-course/course/search" \
  --header "Content-Type: application/json" \
  --data '{
    "queryList": ["高等数学", "微积分", "考研数学"]

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 45)May include surrounding context.

默认使用以下接口进行课程搜索：

bash
curl --location "https://mcp.study.youdao.com/public/mm-course/course/search" \
  --header "Content-Type: application/json" \
  --data '{
    "queryList": ["高等数学", "微积分", "考研数学"]

Static analysis

No suspicious patterns detected.