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Security audit

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Security checks for vulnerabilities and agentic risk

Overview

This skill creates Feishu documents, and its account-writing and media-upload behaviors are disclosed and aligned with that purpose.

Before installing, make sure you want the agent to create Feishu documents in your account. Confirm title, destination, and content before use, and avoid sensitive, private, authenticated, temporary, or untrusted media URLs because referenced files may be fetched and uploaded into Feishu.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • 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
98% confidence
Finding

The skill states that external image and file URLs will be automatically downloaded and uploaded into Feishu, but it does not present this as a privacy and data-transfer warning. That omission is security-relevant because using untrusted or sensitive URLs can cause third-party content retrieval, unintended data ingestion into Feishu, and exposure of externally hosted resources through automated transfer behavior.

Content

No source excerpt is available for this finding.

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
95% confidence
Finding

The skill creates documents in the user's Feishu workspace, but the top-level description does not clearly warn that invoking it performs a write action in the user's account by default. This can mislead users or downstream agents into treating the tool as a harmless formatter rather than a content-publishing action, increasing the risk of unintended data creation or disclosure in the wrong workspace location.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.