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Security audit

Acuity Scheduling

Security checks for vulnerabilities and agentic risk

Overview

The skill appears purpose-aligned for Acuity Scheduling, but its direct remote installer commands and broad account-changing authority warrant user review before installation.

Install only if you trust OOMOL and are comfortable with an agent using your connected Acuity Scheduling account. Avoid running the remote installer one-liners blindly; prefer reviewed/manual installation steps, and require explicit confirmation before creating, updating, rescheduling, or canceling appointments.

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 curl-piped-to-shell command, which executes remote script content directly without prior verification. If the hosting endpoint, network path, or distribution mechanism is compromised, this can lead to arbitrary code execution on the user's machine; including such a command inside an agent skill is especially risky because agents may surface or encourage its use during troubleshooting.

Content

Scanner excerpt · SKILL.md (reported line 66)May include surrounding context.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
97% confidence
Finding

The skill description mandates using this skill for ANY Acuity Scheduling request, which is broader than necessary and can cause automatic invocation for a wide range of read, write, and destructive operations without sufficient task-specific gating. In agentic systems, overly broad routing increases the chance of unintended execution paths and can funnel sensitive or state-changing requests into a tool before appropriate user confirmation or safer alternatives are considered.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.