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Security audit

Feishu Drive

Security checks for vulnerabilities and agentic risk

Overview

This Feishu Drive skill is a small, clearly scoped cloud-file management helper, with delete capability disclosed but worth using carefully.

Install only if you want an agent to manage Feishu Drive content. Use least-privilege Feishu permissions where possible, and confirm move or delete requests carefully because cloud-file deletion may affect shared or business data.

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
Vulnerability Patterns
  • 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
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (2)

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The skill exposes destructive delete capabilities but does not warn that deletion is irreversible or should be confirmed before execution. In an agent setting, this increases the chance of accidental or socially engineered data loss because users may invoke deletion without understanding the consequences.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
84% confidence
Finding

The natural-language examples are exclusively in Chinese, while the rest of the skill description is in English, which can imply a language-specific interaction expectation without user opt-in or justification. The file does not state that the skill is region-specific or that users may interact in their preferred language.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.