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Security audit

Pilvio

Security checks for vulnerabilities and agentic risk

Overview

The Pilvio read operations fit the stated purpose, but setup directs the agent to run unverified remote installers without a clear user approval step.

Review setup before enabling this skill. Prefer separately installing a verified CLI release and explicitly approving installation and any additional agent-skill changes. OOMOL will mediate Pilvio account queries. The complete bundled instructions were inspected, but remote installer and release behavior remain unverified.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Output HandlingUnvalidated Output Injection, Cross-Context Output, Unbounded Output
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
Findings (5)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
99% confidence
Finding

The supplied code performs remote installer execution rather than searching or reading Pilvio data. No relationship between this installation and the declared Pilvio functionality is established in the chunk, so it cannot be treated as a demonstrated supporting implementation detail. The downloaded script's further behavior is not visible.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
99% confidence
Finding

Piping a mutable remote installer directly into Bash executes its contents without prior inspection, version pinning, or independent integrity verification; the PowerShell alternative has the same weakness. A compromised distribution endpoint or altered installer could execute arbitrary code with the invoking user's permissions, including accessing local secrets, although no compromise or malicious intent is demonstrated here.

Content

Scanner excerpt · SKILL.md (reported line 59)May include surrounding context.

First-time setup executes downloaded installer scripts without warning about running remote code or modifying the local system.

Medium
Category
Output Handling
Confidence
95% confidence
Finding

The fallback directs the agent to install software after a missing-command error without requiring explicit approval for local system changes or explaining that downloaded code will execute. Although this occurs only during setup, a request to read Pilvio data should not implicitly authorize running an installer on the user's machine.

Content

No source excerpt is available for this finding.

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
80% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · SKILL.md (reported line 80)May include surrounding context.

md
- **`OOMOL_INSUFFICIENT_CREDIT`** — OOMOL billing stop. Recharge at `https://console.oomol.com/billing/token-recharge` before retrying.

- **HTTP 402 without `OOMOL_INSUFFICIENT_CREDIT`** — the third-party account itself has no active plan or credit. Report the provider error message as is; do not ask the user to recharge OOMOL.

## Resources

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 85)May include surrounding context.

md
## Resources

- Pilvio homepage: https://pilvio.com/
- API documentation: https://api.pilvio.com/