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Security audit

Office Open XML Automation Helper

Security checks for vulnerabilities and agentic risk

Overview

This is a small instruction-only Office automation helper with no executable code, persistence, credential handling, or hidden data flow.

Before installing, understand that this skill may be invoked automatically for Office automation requests. Review any generated scripts or VBA before running them on important documents, and work on copies as the skill itself recommends.

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
  • 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
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (1)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
94% confidence
Finding

The skill enables implicit invocation with no stated trigger constraints, exclusions, or scope limits, which increases the chance it will be auto-selected in contexts the user did not explicitly request. Because this skill can influence multi-file Office automation workflows, unintended invocation could cause overbroad assistance, unsafe file-handling guidance, or routing of tasks to a higher-risk capability without clear user intent.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.