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Security audit

电商爆款主图复刻 | 主图模仿 | 高点击主图 | 竞品图复刻 | LinkPix

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed LinkPix/qhkit workflow for generating ecommerce main images from reference images, with ordinary but real dependency and account-token considerations.

Before installing, confirm you trust the @iqinghu/qhkit npm package and the iqinghu.com/LinkPix service, because your API token and uploaded product/reference images are used by that external service. Prefer a pinned qhkit version for reproducibility, and avoid adding Node PATH changes to shell startup files unless you want that installation to persist.

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
  • 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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Findings (5)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The manifest says the skill must trigger when users ask to '照着某张爆款图做主图' and includes keywords like '照着做' and '相似风格主图'. Especially '照着做' is broad and could collide with ordinary requests, and the description does not provide negative examples or constraints clarifying when similar image-editing requests should not invoke this skill.

Content

No source excerpt is available for this finding.

Rp1

Medium
Category
MCP Rug Pull
Confidence
88% confidence
Finding

The skill recommends executing npx @iqinghu/qhkit without pinning an exact package version. That allows whatever version is current at execution time to be fetched and run, increasing supply-chain risk and reducing reproducibility if the package is updated, compromised, or publishes breaking behavior.

Content

No source excerpt is available for this finding.

Session Persistence

Medium
Category
Rogue Agent
Confidence
91% confidence
Finding

The duplicated finding points to the same persistence behavior: unpacking binaries into a user directory and exporting a modified PATH, with guidance to make it survive across commands. In an agent context, persistence is more dangerous because it can silently influence later executions and expand the blast radius of any compromised binary.

Content

Scanner excerpt · SKILL.md (reported line 51)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
91% confidence
Finding

The duplicated finding points to the same persistence behavior: unpacking binaries into a user directory and exporting a modified PATH, with guidance to make it survive across commands. In an agent context, persistence is more dangerous because it can silently influence later executions and expand the blast radius of any compromised binary.

Content

Scanner excerpt · SKILL.md (reported line 51)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
89% confidence
Finding

The file instructs the agent to use the China site configuration and specifically says not to guide users with the international site unless they explicitly say they use it; nearby lines also state CLI messages are user-facing Chinese. This effectively imposes a language/locale path by default without offering the user a general language or locale choice.

Content

No source excerpt is available for this finding.