Security audit

Obsidian Markdown

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward Obsidian Markdown reference with no code execution, persistence, credential handling, or hidden high-impact behavior.

Installers should treat this as a benign Obsidian Markdown helper. The only practical caveat is that it may activate for general Markdown work inside an Obsidian vault, so users who want stricter behavior may prefer narrower trigger wording.

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 (1)

Vague Triggers

Low

Confidence: 84% confidence
Finding: The invocation guidance says to use the skill when working with .md files in Obsidian, or when the user mentions several Obsidian-related features, but it does not provide exclusion conditions or negative examples. Although many listed terms are domain-specific, the broad 'working with .md files in Obsidian' condition could still be interpreted ambiguously without clearer boundaries on when this skill should not activate.

Static analysis

No suspicious patterns detected.