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Security audit

Voicemaker

Security checks for vulnerabilities and agentic risk

Overview

The skill's core Voicemaker connector behavior is coherent, but its setup instructions include direct execution of a remote installer without verification or explicit user approval.

Review the oo CLI installer source and prefer a verified or package-manager installation path before using this skill. Once installed, only approve Voicemaker write actions such as TTS generation after checking the exact text, voice, and billing impact.

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
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • 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)

External Script Fetching

High
Category
Supply Chain
Confidence
96% confidence
Finding

The skill instructs users to install the CLI via curl ... | bash, which executes a remote script directly from the network without prior verification. If the hosting endpoint, transport path, or upstream distribution is compromised, this becomes arbitrary code execution on the user's machine.

Content

Scanner excerpt · SKILL.md (reported line 56)May include surrounding context.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The description says to use this skill for ANY Voicemaker request and instead of calling the API directly, which is an overly broad trigger that can cause the agent to invoke the skill in situations where a narrower or safer path would be more appropriate. Overbroad routing increases the attack surface because any Voicemaker-related prompt may funnel into shell-based execution of connector commands without sufficient contextual gating.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.