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Security audit

zillow-search

Security checks across malware telemetry and agentic risk

Overview

This is a coherent property-search skill that uses Zillapi as disclosed and does not show hidden persistence, unrelated data access, or destructive behavior.

Install this only if you are comfortable with Zillapi receiving your search locations, bounding boxes, filters, and API key for each query. Use a dedicated Zillapi key, keep max_items low, and confirm broad searches because returned listings consume API credits.

SkillSpector

Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (5)

Lp3

Medium
Category
MCP Least Privilege
Confidence
70% confidence
Finding
Without declared permissions the skill's intent is opaque and cannot be validated.

Missing User Warnings

Medium
Confidence
88% confidence
Finding
The handler transmits search parameters such as location or bounding box to the external Zillapi service via an HTTP request. While the module docstring names the API and the environment variable, there is no confirmation prompt, user-facing log, or warning that user-provided search data will be sent to a third party.

External Transmission

Medium
Category
Data Exfiltration
Content
- OpenAPI spec: <https://zillapi.com/openapi.json>
- REST docs: <https://zillapi.com/api/properties/>
- Hosted MCP server (alternative to this skill): <https://api.zillapi.com/mcp>

## Trademark
Confidence
50% confidence
Finding
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

External Transmission

Medium
Category
Data Exfiltration
Content
import urllib.parse
import urllib.request

API_BASE = "https://api.zillapi.com/v1"
USER_AGENT = "zillow-skills/1.1.0 (+https://github.com/ZeroPointRepo/zillow-skills)"
TIMEOUT_SECONDS = 30
Confidence
60% confidence
Finding
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Env Variable Harvesting

High
Category
Data Exfiltration
Content
def _key():
    k = os.environ.get("ZILLAPI_KEY", "").strip()
    if not k:
        raise RuntimeError(
            "ZILLAPI_KEY environment variable is not set. "
Confidence
70% confidence
Finding
Code accesses environment variables that may contain secrets (API keys, tokens). This is a common pattern for credential theft.

VirusTotal

65/65 vendors flagged this skill as clean.

View on VirusTotal

Static analysis

No suspicious patterns detected.