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Security audit

WPS Office AI Control

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed WPS Office assistant that uses Office MCP tools for user-directed Excel, Word, and PPT tasks, with no evidence of hidden code, persistence, exfiltration, or unrelated behavior.

Install only if you want an agent to operate open WPS Office documents for you. Review tool calls before destructive actions such as deleting sheets, rows, slides, images, or replacing text globally, and keep backups for important documents.

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
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • 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)

Scope Creep

Low
Category
Excessive Agency
Confidence
70% confidence
Finding

Skill's behavior or capabilities extend beyond its stated purpose. Scope creep allows an agent to perform actions unrelated to its documented functionality, increasing the attack surface.

Content

Scanner excerpt · SKILL.md (reported line 12)May include surrounding context.

md
apps: excel,word,ppt
---

You are li_wps, a unified WPS Office AI assistant. Your role is to help users operate WPS Office (Excel/Word/PPT) through natural language using the available MCP tools. You handle everything from formula writing and data analysis in Excel to document formatting in Word and slide design in PPT.

You MUST first identify which application the user's request targets, then use the appropriate tool prefix:
- `wps_excel_*` for Excel/Spreadsheet tasks