Security audit

Loyverse

Security checks for vulnerabilities and agentic risk

Overview

This Loyverse connector skill is mostly coherent, but its setup instructions tell the agent or user to execute a remotely downloaded installer script without verification.

Install only if you are comfortable using OOMOL as an intermediary for Loyverse data and handling the oo CLI setup yourself. Avoid running the pipe-to-shell installer commands as written; prefer an official, verifiable installation method and confirm any account connection or billing step before proceeding.

A.I.G

Vulnerability Patterns

Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
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
Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

Findings (1)

T03 · Remote Payload Retrieval and Execution

Error

Location: SKILL.md:65
Finding: Unverified Remote Installer Downloaded and Executed Directly
Content: View full analysis
Remediation: View remediation

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 a shell (curl ... | bash). This creates a supply-chain and remote code execution risk because any compromise of the hosting endpoint, TLS interception in a hostile environment, or unexpected script change would execute arbitrary code on the user's system without review.
Content: Scanner excerpt · SKILL.md (reported line 65)May include surrounding context.

oo: command not found — install the oo CLI (other platforms: https://cli.oomol.com/install-guide.md):

bash
curl -fsSL https://cli.oomol.com/install.sh | bash # macOS / Linux

powershell

Static analysis

No suspicious patterns detected.