ClawHub
Back to skill

Security audit

WhatSync

Security checks for vulnerabilities and agentic risk

Overview

This skill is a coherent WhatsApp assistant integration that discloses access to synced chats and requires confirmation before sending real messages.

Before installing, understand that this skill is meant to access WhatsApp chats, contacts, attachments, and a connected business number through WhatSync. Use it only if you are comfortable with the agent reading synced WhatsApp data, and verify recipient and message text carefully before approving any send action.

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
  • 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)

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
80% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · SKILL.md (reported line 38)May include surrounding context.

md
## Privacy

Only the chats the user chose are available. If something is missing, say it may not be synced and point the user to the WhatSync dashboard to change which chats are saved. Do not ask the user to share chats in other ways.

Vague Triggers

Low
Category
Not specified by scanner
Confidence
83% confidence
Finding

The description says to use the skill whenever the user asks about their WhatsApp messages, chats, groups, contacts or files, or wants to send a WhatsApp message. While domain-scoped to WhatsApp, it does not provide explicit trigger boundaries or negative examples, which can make invocation conditions somewhat overbroad in a manifest-style file.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.