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Security audit

MiniMax H3 电商带货视频 | LinkPix

Security checks for vulnerabilities and agentic risk

Overview

This skill coherently helps generate MiniMax H3 ecommerce videos through qhkit, with disclosed setup, credential, upload, and credit-use steps.

Before installing, be comfortable with npm-based qhkit setup, sharing a qhkit API key with the agent for configuration, and uploading selected product images or video assets to the service. If you already use qhkit with an international account, confirm the account environment before letting the skill overwrite configuration.

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
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Rogue AgentSelf-Modification, Session Persistence
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Findings (6)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The description says the skill 'must trigger' when a user asks to use MiniMax H3 for 带货/商品/种草/广告视频, which covers very broad commercial video requests without clear exclusion conditions. Although some keywords are specific, terms like 商品视频, 种草视频, and 广告视频 are common request types and the manifest does not provide negative examples or tighter scope boundaries.

Content

No source excerpt is available for this finding.

Rp1

Medium
Category
MCP Rug Pull
Confidence
90% confidence
Finding

The skill instructs use of npx @iqinghu/qhkit without pinning an exact version, which causes execution of whatever package version is current at invocation time. In a privileged agent environment this creates a supply-chain risk: a compromised upstream release or dependency could execute arbitrary code during install/run.

Content

No source excerpt is available for this finding.

Session Persistence

Medium
Category
Rogue Agent
Confidence
88% confidence
Finding

The skill directs installation of Node into $HOME/.local/lib and modifies PATH, with guidance to persist it via shell profile changes. This changes the execution environment beyond the current task and can create lasting state that affects future commands, enabling persistence of an unvetted runtime and increasing the blast radius if that runtime or downloaded archive is compromised.

Content

Scanner excerpt · SKILL.md (reported line 63)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 skill directs installation of Node into $HOME/.local/lib and modifies PATH, with guidance to persist it via shell profile changes. This changes the execution environment beyond the current task and can create lasting state that affects future commands, enabling persistence of an unvetted runtime and increasing the blast radius if that runtime or downloaded archive is compromised.

Content

Scanner excerpt · SKILL.md (reported line 63)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

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
84% confidence
Finding

The skill hardcodes a specific site/locale (cn / domestic account flow) and instructs the agent to overwrite configuration toward that environment unless the user explicitly says otherwise. This can redirect authentication and API use to a different service context than the current machine configuration, risking misrouting of credentials, account confusion, and unintended data transfer across environments.

Content

No source excerpt is available for this finding.

Rp1

Medium
Category
MCP Rug Pull
Confidence
94% confidence
Finding

The fallback image-processing instruction uses npx --yes sharp-cli with no version pin, which fetches and executes the latest published package and dependencies. This is dangerous because it expands the attack surface to a second unpinned supply-chain path and may run arbitrary postinstall or CLI code in the agent environment.

Content

No source excerpt is available for this finding.