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Security audit

Immowelt Real Estate Search

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed Immowelt property-search helper that makes public web requests and does not show hidden, persistent, credential, or destructive behavior.

Install this only if you want Codex to run a local Python helper that queries Immowelt pages. Confirm intent before using it on broad real-estate questions, and use reasonable request limits because it scrapes public listing pages.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (2)

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
92% confidence
Finding

The skill performs network-backed data retrieval via a Python script, but the manifest does not declare any explicit tool scope or allowed permissions. This creates an authorization and transparency gap: users or orchestrators cannot easily constrain or reason about the skill's external access, increasing the chance of unintended network use or abuse if the skill is invoked in sensitive contexts.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
94% confidence
Finding

The trigger phrases are broad and include generic terms such as 'Austrian real estate', 'German real estate', 'Wohnung kaufen', and 'Haus kaufen', which can cause the skill to activate in many unrelated conversations about property markets. Unintended invocation can lead to unnecessary network requests, data retrieval, and agent behavior that the user did not explicitly request.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.