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Security audit

Linkedin Post

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed PostWire helper for drafting, confirming, and publishing LinkedIn posts, with no bundled executable code or hidden persistence.

Install this only if you are comfortable connecting PostWire to your personal LinkedIn profile and allowing an agent to publish or schedule posts after your approval. Review the exact text, media, timing, and platform list before saying yes, especially if the agent suggests cross-posting beyond LinkedIn.

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
Vulnerability Patterns
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • 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
Findings (2)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

The description says to use the skill when the user wants to 'post on LinkedIn', 'write and publish a LinkedIn post', or 'schedule LinkedIn posts', but it does not provide explicit boundaries, exclusions, or negative examples. In a manifest-style skill description, these generic phrases are broad enough to match common everyday requests and could cause unintended invocation.

Content

No source excerpt is available for this finding.

Context-Inappropriate Capability

Medium
Category
Not specified by scanner
Confidence
97% confidence
Finding

The skill is presented as a LinkedIn-posting skill, but it explicitly instructs the agent to also post the same content to X, Bluesky, and Facebook. This expands the action scope beyond the user’s likely expectation and can cause unintended publication to additional accounts if the agent follows the broader instruction without obtaining separate, explicit consent for each platform.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.