Security audit
vestafolio-micro-foncier-vs-reel
Security checks for vulnerabilities and agentic risk
Overview
This skill is a disclosed French rental-tax calculator that sends only relevant user-approved inputs to Vestafolio's simulator API.
Before installing, users should be comfortable sharing the listed rental-tax figures with Vestafolio when they explicitly approve an API call. The skill instructs the agent not to send names, addresses, account identifiers, credentials, files, or conversation history.
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
Vulnerability Patterns
- Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
- Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
- 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
Static analysis
No suspicious patterns detected.