Security audit

Chat With Pdf Zh

Security checks for vulnerabilities and agentic risk

Overview

This is a simple PDF question-answering skill with disclosed PDF text extraction tools and no executable code, persistence, or hidden behavior.

Install only if you are comfortable uploading the PDFs you want analyzed. The skill does not show hidden code or persistence, but PDFs may contain sensitive business, legal, or financial information, so use it with documents appropriate for your environment.

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
Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
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

Low

Category: Not specified by scanner
Confidence: 90% confidence
Finding: The markdown explicitly says users should upload a PDF and 'directly use Chinese to ask questions', which presents Chinese as the required interaction language. Under the policy, forcing a specific language without offering user choice or opt-in is a natural-language policy violation.
Content: No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.