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Security audit

Infini API

Security checks for vulnerabilities and agentic risk

Overview

The skill is a coherent Infini payment integration guide, but it needs review because it mandates a third-party webhook test receiver and gives incomplete replay-protection guidance for payment webhooks.

Before installing, treat this as a beginner payment-integration guide rather than complete production security guidance. Use synthetic sandbox data only, avoid customer or production-derived identifiers in test orders, prefer your own controlled webhook test endpoint when possible, and add timestamp freshness checks, duplicate event rejection, idempotent order handling, and constant-time signature comparison before going live.

Vulnerability Patterns
  • Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
  • 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
Findings (2)

other

Warning
Location
SKILL.md:164
Finding

Mandatory Disclosure of Sandbox Webhook Data to a Third-Party Receiver

Content
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Remediation
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T09 · Insecure Skill Coding Practices

Warning
Location
references/workflow.md:214
Finding

Webhook Verification Guidance Omits Replay Protection

Content
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Remediation
View remediation
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

Static analysis

No suspicious patterns detected.