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Security audit

hk-cinema-now-playing

Security checks for vulnerabilities and agentic risk

Overview

This is a small Hong Kong cinema helper skill with no executable code, persistence, credential handling, or hidden behavior; its main caveat is a somewhat broad activation phrase for movie and ticket-booking requests.

Installers should treat this as a lightweight Hong Kong cinema lookup helper. Before following booking links, confirm the cinema, date, film, and price yourself, and avoid entering payment or account details unless you are on the intended cinema or ticketing site.

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 (1)

Vague Triggers

Medium
Confidence
95% confidence
Finding
The skill description says to use it when the user asks about HK movies, cinema showtimes, or ticket booking, which is broad enough to activate on many generic movie-related requests. Overly broad triggering can cause incorrect skill routing, unnecessary external lookups, or unintended ticket-booking flows, even if it is not a direct code-execution issue.

Static analysis

No suspicious patterns detected.