ClawHub
Back to skill

Security audit

Postiz

Security checks for vulnerabilities and agentic risk

Overview

The skill is mostly coherent for controlling Postiz through OOMOL, but its first-time setup tells the agent to run a remote installer script directly from the internet.

Review the oo CLI installation step before using this skill. Prefer installing the CLI through a trusted, verifiable method and confirm any Postiz write action payload before it runs, especially posts that publish or schedule public content.

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
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • 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)

External Script Fetching

High
Category
Supply Chain
Confidence
97% confidence
Finding

The skill instructs users to install software via a shell pipeline that downloads a remote script and immediately executes it (curl ... | bash). If the install endpoint, transport path, or upstream distribution is compromised, this enables arbitrary code execution on the user's machine with the user's privileges.

Content

Scanner excerpt · SKILL.md (reported line 57)May include surrounding context.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The description says to use this skill for "ANY Postiz request" and "Whenever a task involves Postiz," which is extremely broad and overlaps with many ordinary requests involving Postiz. It does not provide narrower trigger boundaries, exclusions, or negative examples to clarify when the skill should not activate.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.