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Security audit

Prerender

Security checks for vulnerabilities and agentic risk

Overview

The skill is mostly coherent for managing Prerender through OOMOL, but its first-time setup tells the agent to execute an unverified remote install script if the CLI is missing.

Review this skill before installing if you are not already comfortable with the OOMOL CLI. Do not let an agent run the remote installer automatically; install the CLI using a verified method and confirm any cache-clearing or recaching payload before execution.

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
97% confidence
Finding

The skill instructs users to install the CLI via a remote script piped directly into bash, which executes code fetched over the network without prior verification or pinning. If the install endpoint, transport, or upstream distribution is compromised, this could lead to arbitrary code execution on the host running the command.

Content

Scanner excerpt · SKILL.md (reported line 58)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 Prerender request and instead of calling the API directly, which is overly broad routing guidance. This can cause the agent to invoke the skill in situations it should not, including write or destructive operations, increasing the chance of unintended side effects or bypassing more context-appropriate safeguards.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.