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Security audit

AI视频翻译 | 视频字幕翻译 | 视频语音翻译 | 视频本地化 | LinkPix

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed LinkPix/qhkit video translation workflow; its main risks are expected dependency installation, API token setup, and uploading videos to an external service.

Install only if you are comfortable using the qhkit/LinkPix service, installing or updating npm tooling, providing a qhkit API token, and uploading video files for processing. Review commands before allowing global npm installs or PATH changes, and prefer pinned or reviewed package versions in sensitive environments.

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
  • Rogue AgentSelf-Modification, Session Persistence
  • 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
Findings (5)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
85% confidence
Finding

The description is written to require activation for specific Chinese-language request patterns and the document consistently instructs responses and user-facing behavior in Chinese. This creates a language/locale constraint without user opt-in or an explicit statement that the skill is intentionally limited to Chinese-language users.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The skill contains detailed instructions to install software globally, modify PATH, and bootstrap Node.js, but it does not require an explicit user confirmation before making local system changes. In an agentic context, this increases the chance of unexpected environment modification, persistence, or execution of newly downloaded code beyond the user's immediate intent.

Content

No source excerpt is available for this finding.

Rp1

Medium
Category
MCP Rug Pull
Confidence
82% confidence
Finding

The skill instructs use of npx @iqinghu/qhkit without pinning a specific version, which allows whatever package version is current at execution time to be fetched and run. That creates a supply-chain risk: a compromised latest release or unexpected breaking change could execute unreviewed code on the user's machine.

Content

No source excerpt is available for this finding.

Session Persistence

Medium
Category
Rogue Agent
Confidence
84% confidence
Finding

This duplicate finding points to the same persistence behavior: unpacking a runtime into the user's home directory and altering PATH for future command execution. In the context of an agent skill, host modification and session persistence increase the blast radius if the package or follow-on commands are abused or misused.

Content

Scanner excerpt · SKILL.md (reported line 50)May include surrounding context.

Linux 二进制安装(装到用户目录,无需 root;先校验官方 SHA256 再解包):

cd /tmp && curl -fsSLO https://nodejs.org/dist/v22.22.3/node-v22.22.3-linux-x64.tar.xz cd /tmp && curl -fsSL https://nodejs.org/dist/v22.22.3/SHASUMS256.txt | grep ' node-v22.22.3-linux-x64.tar.xz$' | sha256sum -c - mkdir -p "$HOME/.local/lib" && tar -xJf /tmp/node-v22.22.3-linux-x64.tar.xz -C "$HOME/.local/lib" export PATH="$HOME/.local/lib/node-v22.22.3-linux-x64/bin:$PATH"

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Session Persistence

Medium
Category
Rogue Agent
Confidence
84% confidence
Finding

This duplicate finding points to the same persistence behavior: unpacking a runtime into the user's home directory and altering PATH for future command execution. In the context of an agent skill, host modification and session persistence increase the blast radius if the package or follow-on commands are abused or misused.

Content

Scanner excerpt · SKILL.md (reported line 50)May include surrounding context.

Linux 二进制安装(装到用户目录,无需 root;先校验官方 SHA256 再解包):

cd /tmp && curl -fsSLO https://nodejs.org/dist/v22.22.3/node-v22.22.3-linux-x64.tar.xz cd /tmp && curl -fsSL https://nodejs.org/dist/v22.22.3/SHASUMS256.txt | grep ' node-v22.22.3-linux-x64.tar.xz$' | sha256sum -c - mkdir -p "$HOME/.local/lib" && tar -xJf /tmp/node-v22.22.3-linux-x64.tar.xz -C "$HOME/.local/lib" export PATH="$HOME/.local/lib/node-v22.22.3-linux-x64/bin:$PATH"

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