ClawHub
Back to skill

Security audit

Costco Product Data API - Warehouse Prices, Stock, Gas, Coupons

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed guide for using Scavio's Costco data API and does not show hidden, destructive, or unrelated behavior.

Install only if you are comfortable using Scavio as a third-party API provider and sending Costco lookup inputs such as zip codes, coordinates, item IDs, and warehouse IDs to it. Keep SCAVIO_API_KEY in environment or secret storage, watch API credit costs before broad pagination or multi-warehouse requests, and review optional SDK/MCP package installs separately before using them.

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 (3)

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 202)May include surrounding context.

Examples

bash
curl -X POST https://api.scavio.dev/api/v1/costco/prices \
  -H "Authorization: Bearer $SCAVIO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"item_id": "1492456", "warehouse_ids": ["1062", "1107"]}'

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 202)May include surrounding context.

Examples

bash
curl -X POST https://api.scavio.dev/api/v1/costco/prices \
  -H "Authorization: Bearer $SCAVIO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"item_id": "1492456", "warehouse_ids": ["1062", "1107"]}'

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 218)May include surrounding context.

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

def costco(endpoint, body):
    r = requests.post(f"{BASE}/api/v1/costco/{endpoint}", headers=HEADERS, json=body)
    r.raise_for_status()
    return r.json()["data"]

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:40