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Security audit

商品条码查询 - Barcode Inquiry - 极速数据

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed barcode lookup integration that sends a user-provided barcode and API key to JisuAPI, with no evidence of hidden persistence, destructive actions, or unrelated data access.

Before installing, users should be comfortable sending queried barcode values and their JISU_API_KEY to JisuAPI and should monitor any provider quota or billing tied to that key. The skill is best used for explicit product barcode lookups, not barcode generation, QR handling, or general product search.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Findings (5)

Tp2

High
Category
MCP Tool Poisoning
Confidence
85% confidence
Finding

Mixing characters from multiple Unicode scripts in a single identifier is a common technique to create visually ambiguous tool names.

Content

No source excerpt is available for this finding.

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
90% confidence
Finding

The skill metadata declares required environment access and, by implication, external API/network use, but the skill does not declare an explicit tool scope such as permissions or allowed-tools. This weakens least-privilege controls and can cause the runtime or reviewers to underestimate what the skill can access, especially since it uses an API key and makes outbound requests.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The activation text is broad enough that the agent may invoke this skill for loosely related requests about barcodes without strong boundaries. Because the skill performs external lookups using a configured API key, over-broad routing can trigger unnecessary data disclosure to a third-party service, wasted API quota, or unintended execution when the user did not clearly request barcode lookup.

Content

No source excerpt is available for this finding.

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 · barcode.py (reported line 14)May include surrounding context.

python
import requests


BARCODE2_URL = "https://api.jisuapi.com/barcode2/query"


def query_barcode(appkey: str, req: dict):

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
84% confidence
Finding

This Python file includes natural-language documentation and usage text in Chinese, with no indication that the skill is region-specific or that users may choose another language. The policy requires flagging language or locale constraints when they are imposed without opt-in or justification.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.