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Security audit

acuity-scheduling

Security checks across malware telemetry and agentic risk

Overview

This skill is a disclosed Acuity Scheduling integration that uses Maton OAuth and API calls, with user approval required for account connections and writes.

Install only if you are comfortable authorizing Maton to access your Acuity Scheduling account. Prefer OAuth, confirm the exact account and connection before use, and require clear confirmation before any create, update, cancel, delete, or other write operation.

SkillSpector

By NVIDIA
Vulnerability Patterns
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • 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 (1)

Description-Behavior Mismatch

Medium
Confidence
95% confidence
Finding
The skill advertises a narrower access scope, but the documented `maton api` passthrough forwards arbitrary Acuity native paths, methods, query strings, and most headers. That creates a scope/expectation mismatch: an agent or user may assume the skill is constrained to appointments, calendars, clients, and availability when it can in fact reach broader account functionality and any future native endpoints exposed through the gateway.

VirusTotal

64/64 vendors flagged this skill as clean.

View on VirusTotal

Static analysis

No suspicious patterns detected.