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Security audit

Spraay Batch Payments

Security checks for vulnerabilities and agentic risk

Overview

This skill is a clearly disclosed Spraay crypto payments helper that uses an external gateway as expected and includes strong user-confirmation and transaction-verification safeguards.

Install only if you intend to use Spraay for real crypto payments. Verify SPRAAY_GATEWAY_URL is https://gateway.spraay.app unless you control another HTTPS gateway, use a low-balance wallet for x402 micropayments, and manually review every decoded recipient, amount, token, fee, and chain before signing because blockchain payments are irreversible.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • 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 (2)

External Transmission

Medium
Category
Data Exfiltration
Confidence
60% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 17)May include surrounding context.

md
emoji: "💧"
    requires:
      bins:
        - curl
        - jq
      env:
        - SPRAAY_GATEWAY_URL

External Transmission

Medium
Category
Data Exfiltration
Confidence
60% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 276)May include surrounding context.

Estimate takes just the headcount:

bash
curl -X POST "$SPRAAY_GATEWAY_URL/api/v1/payroll/estimate" \
  -H "Content-Type: application/json" \
  -d '{"employeeCount": 12}'

Static analysis

No suspicious patterns detected.