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Security audit

AI Info Digest

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed WeChat article digest workflow with minor privacy and scoping cautions, but no evidence of deception, exfiltration, executable payloads, or unsafe persistence.

Install only if you are comfortable with the skill reading your configured public-account list, browsing public article sources, and saving a local digest in Documents. For ambiguous requests like general article summaries, confirm that you mean the WeChat/public-account digest before letting it run.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (4)

Vague Triggers

High
Category
Not specified by scanner
Confidence
96% confidence
Finding

The trigger conditions are broad enough to match generic requests like '整理最近的文章' or '这周的阅读摘要' even when the user did not ask for WeChat public account processing. Over-broad activation can cause the wrong skill to run, leading to unintended browsing, reading of configured subscriptions, and downstream side effects such as local file creation.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

Medium
Category
Not specified by scanner
Confidence
88% confidence
Finding

The manifest and overview describe a tool for obtaining articles published by followed WeChat public accounts, but the workflow defines Zhihu columns/personal pages as the preferred acquisition channel and official websites as the secondary source. This means the skill is actually a cross-site article digest built from mirrors and substitutes, which can diverge from the claimed source and behavior.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The skill directs saving output to ~/Documents automatically without any user-facing warning or confirmation. Silent persistence of a digest about the user's followed accounts and reading interests can expose sensitive preference data to other local users, backups, indexing systems, or later unintended reuse.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

Low
Category
Not specified by scanner
Confidence
89% confidence
Finding

The skill instructs the agent to write a digest file into the user's local Documents directory, but this side effect is not disclosed in the manifest description. Undisclosed local file writes can violate user expectations and create privacy or persistence risks, especially when the digest contains reading history or subscription interests.

Content

No source excerpt is available for this finding.