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Security audit

08 Video Merge

Security checks for vulnerabilities and agentic risk

Overview

The skill does not appear to steal data or persist access, but it falsely reports a completed video merge without actually using the supplied media inputs or creating output.

Review this before installing because the package appears to be a nonfunctional or placeholder implementation: it accepts media URLs and claims a finished merge, but no merge occurs. There is no evidence of exfiltration or persistence in the inspected artifact, but users should not rely on its output without verifying that a real merged file is produced.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (2)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
98% confidence
Finding

The returned message is hard-coded in Chinese ("合成完成:视频+音频+字幕已合并为9:16竖屏成片") with no indication that the skill is region-specific or that users can opt into a preferred language. This is a natural-language policy concern because it imposes a specific locale on all users.

Content

No source excerpt is available for this finding.

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
83% confidence
Finding

This manifest states that the skill combines video, audio, and subtitles and accepts URL inputs, which implies network retrieval of user-supplied media and creation of a derived output artifact. The description does not include any warning about handling external content or generating output that may affect user data/privacy, which is expected for markdown/manifest-facing skill descriptions.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.