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Security audit

Grok 爆款视频复刻 | LinkPix

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed video-generation integration, but users should understand it installs CLI tooling and uses an API key for a paid remote service.

Install only if you are comfortable letting the agent install npm-based qhkit tooling, store or use an iqinghu API key, upload provided media/links to the qhkit service, and spend credits after explicit confirmation.

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
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Rogue AgentSelf-Modification, Session Persistence
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (5)

Rp1

Medium
Category
MCP Rug Pull
Confidence
95% confidence
Finding

The skill instructs use of npx @iqinghu/qhkit without pinning an exact package version. This causes code to be fetched and executed at runtime from the registry, so a malicious upstream update, dependency compromise, or typosquatted resolution could execute arbitrary code in the agent environment.

Content

No source excerpt is available for this finding.

Session Persistence

Medium
Category
Rogue Agent
Confidence
88% confidence
Finding

The same installation flow persists software under the user's home directory and recommends changes that can survive beyond the current session. Even with checksum verification, persistence expands blast radius by making future commands depend on a manually bootstrapped runtime that may not be centrally managed or monitored.

Content

Scanner excerpt · SKILL.md (reported line 64)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"

text

Session Persistence

Medium
Category
Rogue Agent
Confidence
88% confidence
Finding

The same installation flow persists software under the user's home directory and recommends changes that can survive beyond the current session. Even with checksum verification, persistence expands blast radius by making future commands depend on a manually bootstrapped runtime that may not be centrally managed or monitored.

Content

Scanner excerpt · SKILL.md (reported line 64)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"

text

Rp1

Medium
Category
MCP Rug Pull
Confidence
96% confidence
Finding

The instruction npx --yes sharp-cli executes an unpinned package directly from the registry and auto-confirms installation. That combination removes an approval checkpoint and exposes the environment to arbitrary code execution if the package, dependency chain, or registry resolution is compromised.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

The instruction says to relay the CLI message because it is already user-facing Chinese, which implies responses should be delivered in Chinese regardless of the user's preferred language. This is a natural-language locale policy issue because the skill does not offer a language choice or document a justified locale restriction.

Content

No source excerpt is available for this finding.