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Security audit

Vrbo reviews

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward StayingAPI integration for fetching Vrbo reviews, with the main caution being normal API-key handling.

Install only if you are comfortable sending listing identifiers or URLs to StayingAPI. Use a sandbox stay_test_ key for evaluation, store live keys in a secure secret manager where possible, and avoid committing, logging, or sharing STAYINGAPI_KEY.

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 (5)

Missing User Warnings

Medium
Confidence
92% confidence
Finding
The document explicitly instructs the user to persist a long-lived API key across sessions and suggests storing it in shell profiles or runtime-managed config without any guidance on secret storage hardening. That increases the chance of credential exposure through dotfile syncing, local compromise, backups, logs, or accidental sharing, especially because the same key grants access across multiple services.

External Transmission

Medium
Category
Data Exfiltration
Content
## Step 3 — verify

```bash
curl -s "https://api.stayingapi.com/v1/account" -H "Authorization: Bearer $STAYINGAPI_KEY" | head
```

A `200` with your account envelope means the key works. A missing/invalid key returns `401 authentication_error` (never billed). Full contract: <https://api.stayingapi.com/openapi.json>.
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
## Step 3 — verify

```bash
curl -s "https://api.stayingapi.com/v1/account" -H "Authorization: Bearer $STAYINGAPI_KEY" | head
```

A `200` with your account envelope means the key works. A missing/invalid key returns `401 authentication_error` (never billed). Full contract: <https://api.stayingapi.com/openapi.json>.
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
## Step 3 — verify

```bash
curl -s "https://api.stayingapi.com/v1/account" -H "Authorization: Bearer $STAYINGAPI_KEY" | head
```

A `200` with your account envelope means the key works. A missing/invalid key returns `401 authentication_error` (never billed). Full contract: <https://api.stayingapi.com/openapi.json>.
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
## Step 3 — verify

```bash
curl -s "https://api.stayingapi.com/v1/account" -H "Authorization: Bearer $STAYINGAPI_KEY" | head
```

A `200` with your account envelope means the key works. A missing/invalid key returns `401 authentication_error` (never billed). Full contract: <https://api.stayingapi.com/openapi.json>.
Confidence
50% confidence
Finding
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Static analysis

No suspicious patterns detected.