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Security audit

zhihu-hot-article-engine

Security checks for vulnerabilities and agentic risk

Overview

This is a disclosed Zhihu-focused Chinese writing guide with no executable code, hidden access, persistence, or credential handling.

Install this if you want an agent to draft Chinese long-form content in a Zhihu style. Be aware it may bias output toward Zhihu-specific engagement and formatting patterns even for other Chinese platforms; review citations, claims, and platform rules before publishing.

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
  • 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 (4)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
83% confidence
Finding

The README describes the skill as being for writing Zhihu answers and articles, and later extends this to long-form Chinese social media content. This indicates a specific language/locale orientation, but the file does not explicitly offer opt-in language choice or explain the locale restriction as a documented regional limitation.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
94% confidence
Finding

The activation condition is broad enough to trigger on 'any long-form Chinese social media content,' which exceeds the stated Zhihu-specific purpose and can cause the skill to be applied in unrelated contexts without clear user intent. In agent systems, overbroad activation can lead to inappropriate capability invocation, undesired behavioral shaping, and accidental platform-specific optimization being applied where it does not belong.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

The skill is framed as a general writing engine but its instructions and examples throughout the file require Zhihu-specific Chinese writing conventions, Chinese phrases, and platform-native structure. There is no explicit user choice or opt-in for language/locale behavior, which can violate language policy requirements when a skill constrains output to a specific language by default.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

This markdown file contains only Chinese-language instructions and output content, and there is no indication that users can opt into another language or that the skill is explicitly limited to a Chinese-only context. Under the policy rule, forcing a specific language without user choice is a natural-language policy concern.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.