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Security audit

Xueersi Essay Correction Assistant

Security checks for vulnerabilities and agentic risk

Overview

This is a simple essay-feedback skill for Chinese-language student writing, with no commands, network use, persistence, or hidden authority.

Install only if you want an assistant specialized for Chinese essay feedback. The Xueersi branding appears in the skill text, so verify the publisher separately if brand authenticity matters to you.

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
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (1)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
83% confidence
Finding

The description specifies the skill is for correcting Chinese essays and presents the assistant as a Chinese composition tool, but it does not state whether users may opt into other languages or whether non-Chinese input is unsupported. Under the policy rule, a language-specific constraint should be clearly justified or presented as an explicit user-facing limitation/choice.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.