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Security audit

Office Docs

Security checks for vulnerabilities and agentic risk

Overview

This Office document skill is broad and somewhat incomplete, but its instructions are coherent with document creation, editing, conversion, and extraction rather than hidden or harmful behavior.

Install only if you want Codex to help process Office documents. Use it on copies of important files, be cautious with untrusted documents, and expect that some referenced helper files or scripts may be missing from this package.

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
92% confidence
Finding

The trigger scope is overly broad because it claims applicability to 'any other Office document tasks,' which can cause the agent to invoke this skill for loosely related or unrelated requests without clear boundaries. In an agentic system, ambiguous activation increases the chance of inappropriate tool/script guidance, unnecessary file handling, or use of external conversion utilities on untrusted documents.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.