ClawHub
Back to skill

Security audit

IG Cropper

Security checks for vulnerabilities and agentic risk

Overview

This skill is a small local image-cropping helper with a minor documentation scoping issue, not a security concern.

Before installing, understand that this is intended for Instagram dark-mode mobile screenshots and may not crop light-mode or non-Instagram images correctly. It only needs access to the input image and the output path you provide.

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 (2)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

The description says to use the skill whenever you need to automate extraction of imagery from Instagram, but it does not define specific trigger phrases, constraints, or exclusion cases. This broad natural-language activation guidance could overlap with general image-editing or screenshot-cleanup requests and cause unintended invocation.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

Earlier text states the extractor depends on Instagram dark mode's specific background color, but the usage section says it works on 'any Instagram screenshot.' This creates an ambiguous activation condition because users are not clearly told when the skill should and should not be used.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.