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Security audit

Material Report

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward ad video analysis/report template with proportionate local file handling and no evidence of hidden execution, persistence, credential access, or exfiltration.

Installers should know this skill may read a user-provided video and create extracted frame images in the current working directory using ffmpeg. Use it only on video assets appropriate for local analysis, and expect the bundled report template to be Chinese unless the agent adapts it to the user's language.

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
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • 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)

Hidden Instructions

High
Category
Prompt Injection
Confidence
60% confidence
Finding

Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Content

Scanner excerpt · references/report_template.md (reported line 1)May include surrounding context.

md
# 素材分析与新素材方案报告(模板)

**素材**:`<video_path>`  
**品类**:`<category>`

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
89% confidence
Finding

This markdown template uses Chinese throughout headings, labels, and instructions, which effectively forces a specific language for skill output. The file does not indicate that Chinese is optional, user-selected, or required for a documented region-specific purpose.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.