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Security audit

Podscribe

Security checks for vulnerabilities and agentic risk

Overview

The Podscribe functions fit the stated purpose, but setup can execute unverified downloaded code without a clear user approval step.

Review and approve CLI setup separately before allowing this skill to install software. Prefer a verified, pinned release, and check or disable automatic installation of other agent skills. OOMOL will handle the connected Podscribe account. The review concern is uncontrolled setup and insufficiently disclosed persistent changes; the inspected artifact does not establish malicious intent.

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
  • 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
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Findings (4)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
96% confidence
Finding

The supplied code performs remote installer execution rather than Podscribe data access. Installing a dependency could be a supporting implementation detail, but the supplied content establishes no connection between this installer and the declared Podscribe functionality. The downloaded script's contents and effects are not available for assessment.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

The command pipes mutable remote content directly into a shell without verifying a pinned release, checksum, or signature; the PowerShell alternative has the same weakness. Compromise of the installation endpoint or distribution pipeline could execute arbitrary code with the agent process's privileges and access local data or credentials. HTTPS and the legitimate dependency context reduce suspicion of malicious intent but do not establish script integrity.

Content

Scanner excerpt · SKILL.md (reported line 57)May include surrounding context.

The fallback setup instructs the agent to execute a downloaded installer without warning the user about local system changes.

Medium
Category
Output Handling
Confidence
94% confidence
Finding

A request to read Podscribe data can trigger instructions to install local software without first explaining the system changes or obtaining approval. Restricting this fallback to a missing CLI reduces its frequency, but does not make installation an authorized consequence of a read-only data request.

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 78)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