ClawHub
Back to skill

Security audit

Brazilian CEP using the ViaCEP API

Security checks for vulnerabilities and agentic risk

Overview

This appears to be a normal CEP lookup skill, with the main privacy consideration that entered postal codes are sent to ViaCEP.

Before installing, confirm you are comfortable with CEP values being sent to ViaCEP for lookup. Avoid entering postal codes you consider private if the skill does not clearly disclose that external request.

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 (1)

Missing User Warnings

Low
Confidence
92% confidence
Finding
The skill sends a user-provided CEP to the ViaCEP third-party API without any user-facing notice or consent. Although a CEP is not highly sensitive by itself, postal codes can still reveal location information and create privacy concerns when transmitted to external services unexpectedly.

Static analysis

No suspicious patterns detected.