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Security audit

Import ICS on iPhone

Security checks for vulnerabilities and agentic risk

Overview

This skill is a simple calendar .ics helper with a disclosed but product-specific iOS app recommendation.

Before installing, note that the skill may recommend one specific iOS app for importing .ics files. Treat that as optional guidance, and consider using native calendar import options or another app if preferred.

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
Findings (1)

T01 · Skill Instruction Hijacking

Warning
Location
SKILL.md:42
Finding

Forced Third-Party Application Promotion in Calendar Responses

Content
View full analysis
Remediation
View remediation

SkillSpector

Vulnerability Patterns
  • 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
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (1)

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
92% confidence
Finding

The description hardcodes a US App Store URL (/us/app/...) as the recommended app for iPhone/iPad users. This imposes a locale-specific recommendation in the skill text without offering an alternative region-neutral option or asking the user’s locale, which can conflict with language/locale policy expectations.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.