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Security audit

Qwen Web Reviewer [GPT]

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed workflow for sending authorized review prompts to Qwen Web through a browser session, with clear limits around sensitive data and credentials.

Install only if you are comfortable having selected prompts or excerpts sent to Qwen Web for review. Do not use it for confidential or regulated material unless you explicitly authorize that transfer, and expect Qwen chats to exist in the signed-in Qwen account like normal web chat history.

A.I.G

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

SkillSpector

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

Context Leakage

High
Category
Data Exfiltration
Content
- After opening a new chat, verify that the composer is empty and the conversation header/URL changed. Re-select the newest suitable model and re-enable or verify Thinking because Qwen may reset these settings per chat.
- Never continue a previous conversation merely to preserve model settings. Context separation has priority over convenience.
- For a follow-up on the same subject, keep the same chat and reference the earlier answer explicitly. For a new subject, start a new chat and do not paste the old answer unless it is intentionally part of the new task.
- Record the chat label, model label, Thinking state, and round count in the final synthesis; do not expose session-bound URLs.

## Synthesis and reporting
Confidence
85% confidence
Finding
Code or instructions that leak agent conversation context to external services, potentially exposing sensitive user interactions.

Autonomous Decision Making

Medium
Category
Excessive Agency
Content
## Browser and session

1. Use the available browser-control skill before interacting with Qwen. Reuse the existing Qwen tab when it is live; do not create unnecessary tabs or reload an active conversation.
2. Verify that the visible page is Qwen Studio and that the account is signed in. A visible user profile, sidebar, model picker, and working composer are positive signs of authentication. Do not ask the user to log in or create a new tab when those signs are present; request manual login only when the current visible page actually shows `Войти`/`Sign in`, `Зарегистрироваться`/`Sign up`, a login form, CAPTCHA, bot check, or an equivalent blocking state.
3. Use the secure browser-auth capability for login or credential entry. Never request or enter a password, OTP, recovery code, or passkey through ordinary page automation. Passkeys are not supported in the Cloud Browser.
4. If Qwen requests CAPTCHA, 2FA, re-authentication, or a security decision, stop at the blocking step and offer the documented manual browser handoff. Do not solve or bypass a CAPTCHA without the required action-time confirmation, and do not claim that the session is persistent until a fresh Qwen page verifies it.
Confidence
80% confidence
Finding
Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Static analysis

No suspicious patterns detected.