Security audit

Ielts Extractor

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward IELTS PDF-to-JSON extraction helper with local file access and no evidence of hidden execution, credential use, persistence, or exfiltration.

Install only if you expect a Chinese-language helper for extracting IELTS reading content into local project files. Confirm you have rights to use the source PDFs and review generated JSON/images before committing or publishing them.

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

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
Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code

Findings (3)

Vague Triggers

Medium

Confidence: 90% confidence
Finding: The trigger condition uses a broad natural-language phrase ('提取雅思试题') without clear scoping, exclusions, or validation of the user’s exact intent. This can cause the skill to activate in unintended contexts, increasing the chance of processing copyrighted exam PDFs or acting on ambiguous requests without sufficient safeguards.

Natural-Language Policy Violations

Medium

Confidence: 89% confidence
Finding: The file title and all instructional content are written exclusively in Chinese, with no indication that other languages are supported or that the locale restriction is intentional and justified. Under the stated policy, forcing a specific language without user opt-in is a natural-language policy violation.

Natural-Language Policy Violations

Low

Confidence: 87% confidence
Finding: This code includes a prominent natural-language description in Chinese only, without offering any language choice or documenting that the skill is intentionally locale-specific. Under the language/locale policy, forcing a specific language without user opt-in can be a policy violation.

Static analysis

No suspicious patterns detected.