Security audit

汇率查询 - Exchange Rate Inquiry & Conversion

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed exchange-rate lookup tool that sends currency query parameters and a required JisuAPI key to the documented JisuAPI endpoints.

Install only if you are comfortable sending exchange-rate query details and your JisuAPI AppKey to JisuAPI. Keep the API key scoped to this service if possible, monitor usage or billing quotas, and avoid including unnecessary personal or account information in currency queries.

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 (11)

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: 89% confidence
Finding: The skill requires an environment variable containing an API key and clearly relies on external network access, but it does not declare an explicit tool scope such as permissions or allowed-tools. That creates an authorization and review gap: an agent may invoke code with broader capabilities than a reviewer expects, increasing the risk of unintended network calls or secret exposure through the script.
Content: No source excerpt is available for this finding.

Vague Triggers

Medium

Category: Not specified by scanner
Confidence: 93% confidence
Finding: The activation description is broad enough to match many exchange-rate-related natural-language requests without tight boundaries, which can cause over-triggering. In an agent setting, that may lead to unnecessary external API calls, inadvertent sharing of user-provided financial context with a third party, and execution of this skill when a simpler local response would suffice.
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 · exchange.py (reported line 14)May include surrounding context.
python
import requests EXCHANGE_CONVERT_URL = "https://api.jisuapi.com/exchange/convert" EXCHANGE_SINGLE_URL = "https://api.jisuapi.com/exchange/single" EXCHANGE_CURRENCY_URL = "https://api.jisuapi.com/exchange/currency" EXCHANGE_BANK_URL = "https://api.jisuapi.com/exchange/bank"

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 · exchange.py (reported line 15)May include surrounding context.
python
import requests EXCHANGE_CONVERT_URL = "https://api.jisuapi.com/exchange/convert" EXCHANGE_SINGLE_URL = "https://api.jisuapi.com/exchange/single" EXCHANGE_CURRENCY_URL = "https://api.jisuapi.com/exchange/currency" EXCHANGE_BANK_URL = "https://api.jisuapi.com/exchange/bank"

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 · exchange.py (reported line 16)May include surrounding context.
python
import requests EXCHANGE_CONVERT_URL = "https://api.jisuapi.com/exchange/convert" EXCHANGE_SINGLE_URL = "https://api.jisuapi.com/exchange/single" EXCHANGE_CURRENCY_URL = "https://api.jisuapi.com/exchange/currency" EXCHANGE_BANK_URL = "https://api.jisuapi.com/exchange/bank"

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 · exchange.py (reported line 17)May include surrounding context.
python
import requests EXCHANGE_CONVERT_URL = "https://api.jisuapi.com/exchange/convert" EXCHANGE_SINGLE_URL = "https://api.jisuapi.com/exchange/single" EXCHANGE_CURRENCY_URL = "https://api.jisuapi.com/exchange/currency" EXCHANGE_BANK_URL = "https://api.jisuapi.com/exchange/bank"

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 · exchange.py (reported line 18)May include surrounding context.
python
import requests EXCHANGE_CONVERT_URL = "https://api.jisuapi.com/exchange/convert" EXCHANGE_SINGLE_URL = "https://api.jisuapi.com/exchange/single" EXCHANGE_CURRENCY_URL = "https://api.jisuapi.com/exchange/currency" EXCHANGE_BANK_URL = "https://api.jisuapi.com/exchange/bank"

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 · exchange.py (reported line 19)May include surrounding context.
python
import requests EXCHANGE_CONVERT_URL = "https://api.jisuapi.com/exchange/convert" EXCHANGE_SINGLE_URL = "https://api.jisuapi.com/exchange/single" EXCHANGE_CURRENCY_URL = "https://api.jisuapi.com/exchange/currency" EXCHANGE_BANK_URL = "https://api.jisuapi.com/exchange/bank"

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 · exchange.py (reported line 20)May include surrounding context.
python
import requests EXCHANGE_CONVERT_URL = "https://api.jisuapi.com/exchange/convert" EXCHANGE_SINGLE_URL = "https://api.jisuapi.com/exchange/single" EXCHANGE_CURRENCY_URL = "https://api.jisuapi.com/exchange/currency" EXCHANGE_BANK_URL = "https://api.jisuapi.com/exchange/bank"

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 · exchange.py (reported line 21)May include surrounding context.
python
import requests EXCHANGE_CONVERT_URL = "https://api.jisuapi.com/exchange/convert" EXCHANGE_SINGLE_URL = "https://api.jisuapi.com/exchange/single" EXCHANGE_CURRENCY_URL = "https://api.jisuapi.com/exchange/currency" EXCHANGE_BANK_URL = "https://api.jisuapi.com/exchange/bank"

Static analysis

No suspicious patterns detected.