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Security audit

officecli-xlsx

Security checks across malware telemetry and agentic risk

Overview

The skill is mostly coherent for Excel workbook work, but its setup instructions tell users to execute a remote installer directly without verification.

Review the officecli project and installer source before installing. Prefer downloading a pinned release from the linked releases page and verifying its checksum or signature instead of running the one-line remote installer directly.

SkillSpector

By NVIDIA
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 (2)

Missing User Warnings

Medium
Confidence
97% confidence
Finding
The setup instructions tell users to pipe a remotely fetched script directly into a shell/PowerShell interpreter without any verification step. This creates a supply-chain and remote code execution risk: if the host, transport, or distribution path is compromised, arbitrary code will run immediately on the user's machine.

External Script Fetching

High
Category
Supply Chain
Content
If `officecli` is missing:

- **macOS / Linux**: `curl -fsSL https://d.officecli.ai/install.sh | bash`
- **Windows (PowerShell)**: `irm https://d.officecli.ai/install.ps1 | iex`

Verify with `officecli --version` (open a new terminal if PATH hasn't picked up). If install fails, download a binary from https://github.com/iOfficeAI/OfficeCLI/releases.
Confidence
99% confidence
Finding
curl -fsSL https://d.officecli.ai/install.sh | bash

VirusTotal

64/64 vendors flagged this skill as clean.

View on VirusTotal

Static analysis

No suspicious patterns detected.