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Security audit

feishu-doc-long-content

Security checks for vulnerabilities and agentic risk

Overview

This skill is a short Feishu document-writing guide with no executable code, though users should be mindful that its local Markdown workaround can leave a persistent copy of document contents.

Before using the local Markdown workaround, consider whether the content is sensitive and where the file will be stored, synced, backed up, or retained. For sensitive documents, prefer splitting content into smaller Feishu writes or explicitly choosing a temporary, protected location and deleting it afterward.

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 (1)

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The skill explicitly recommends saving document content to a local Markdown file as a workaround, but does not warn that this creates an additional plaintext copy of potentially sensitive user data on disk. That increases exposure through local compromise, backup/sync leakage, shared workstations, or accidental retention beyond the user's expectations.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.