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Security audit

Pdf Reader Cn

Security checks for vulnerabilities and agentic risk

Overview

This skill does what it says: it reads user-selected PDFs and prints extracted text, tables, metadata, and basic analysis without hidden network, persistence, or privilege behavior.

Installers should understand that extracted PDF text, table contents, and metadata may appear in terminal output or JSON files. Avoid running it on sensitive PDFs in shared terminals, CI logs, or transcripts unless that disclosure is acceptable.

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)

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

The script outputs extracted PDF text previews and document metadata directly to stdout or JSON without any warning, redaction, or consent mechanism. If users run it on sensitive PDFs, confidential content such as personal data, internal business information, or document authorship/title metadata can be unintentionally exposed in terminals, logs, CI output, or downstream systems consuming the JSON.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.