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Security audit

闪兑骑士 Flash Redeem Knight

Security checks for vulnerabilities and agentic risk

Overview

This skill automates redeeming user-provided prepaid coupon links and includes clear checks to avoid extra payment or accidental redemption.

Install only if you are comfortable letting the agent operate a browser on prepaid coupon links you own. Confirm the intended store and pickup choices before irreversible redemption, stop if the page asks for extra payment, and treat redemption codes and screenshots as sensitive until used.

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
  • 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
Confidence
92% confidence
Finding
Line L26 specifies `preferred_language: zh/en`, which imposes a limited language choice in natural-language content. The file does not explain whether this restriction is optional, user-selected, or justified by a region-specific requirement, so it may violate language/locale policy expectations.

Static analysis

No suspicious patterns detected.