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Security audit

instruction-web

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward Chinese-language workflow for creating and publishing HTML guide pages, with no hidden code or persistence, but users should confirm before any GitHub push.

Install only if you want a Chinese-language helper for creating Web UI guide pages. Before letting it run git commit or git push, confirm the target repository, branch, output directory, and whether the generated HTML should be publicly published.

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 (3)

Vague Triggers

High
Category
Not specified by scanner
Confidence
94% confidence
Finding

The skill declares mandatory auto-trigger conditions using broad everyday phrases like '创建指南', '操作说明', and '界面介绍'. These terms are common in normal conversation, so the skill can activate unintentionally and take over workflows the user did not explicitly request, creating prompt-routing confusion and increasing the chance of unintended file generation or repository actions.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

The manifest description includes broad scenario-based activation text such as creating guides, interface introductions, and import tutorials, but does not define clear limits or disambiguation rules. This makes the skill eligible for many unrelated user requests, which can cause accidental activation and unsafe overreach into tasks involving content generation and publishing.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
84% confidence
Finding

The skill description is written to enforce Chinese-language behavior and Chinese trigger terms without any indication that language should follow user preference. In multilingual environments this can override expected UX, cause misrouting based on language-specific keywords, and reduce user control over how the agent responds.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.