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Security audit

OneSignal

Security checks for vulnerabilities and agentic risk

Overview

The skill is coherent for managing OneSignal through OOMOL, but its setup path includes remote installer scripts that should be reviewed before use.

Use this skill only if you are comfortable routing OneSignal actions through OOMOL. Confirm all push-notification creation and cancellation payloads before execution, and install the oo CLI through a trusted, verified method rather than blindly running the remote shell installer.

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
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (1)

External Script Fetching

High
Category
Supply Chain
Confidence
95% confidence
Finding

The skill instructs the agent to install software by piping a remotely fetched script directly into bash, which is a well-known supply-chain and remote code execution risk. If the install endpoint, transport, or upstream distribution is compromised, arbitrary code would execute on the host with the user's privileges; in an agent context, this is especially risky because the instruction appears as an automated fallback step.

Content

Scanner excerpt · SKILL.md (reported line 58)May include surrounding context.

Static analysis

No suspicious patterns detected.