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Security audit

WeChat Digest

Security checks for vulnerabilities and agentic risk

Overview

This skill is a coherent WeChat article summarizer with only purpose-aligned local file and public-article handling noted.

Install only if you are comfortable granting the agent access to the specific URL-list files and output folders you choose. Do not provide private articles, cookies, or account credentials unless a future version clearly documents why they are needed and how they are protected.

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
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • 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 (2)

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
79% confidence
Finding

The skill advertises file-based batch/output behavior such as reading a URL list from a local file and writing notes to an output directory, but it does not declare any explicit tool scope or permission boundaries. That mismatch can lead to over-broad file access at runtime, making it harder to enforce least privilege and increasing the risk of unintended local file reads if the agent infers or is granted generic file capabilities.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
82% confidence
Finding

The file presents output-format examples in Chinese, which can imply a fixed language expectation for the skill's outputs. Because the document does not state that language is selectable or limited to a China-specific use case, this may conflict with a policy requiring user language/locale choice.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.