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Security audit

security-check

Security checks for vulnerabilities and agentic risk

Overview

This skill is a small, disclosed workflow for submitting an authorized website security-check request to Rheono by sending a domain and email address.

Install only if you are comfortable sending the target domain and report email address to Rheono, and use it only for sites or APIs you own or are authorized to test.

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 (1)

External Transmission

Medium
Category
Data Exfiltration
Confidence
92% confidence
Finding

The skill instructs the agent to transmit user-supplied data, including a target domain and email address, to an external third-party service. Even though this is the stated purpose of the skill and it includes an authorization gate, it still creates a real data-exfiltration and third-party action surface: the agent causes an external security scan request to be initiated and shares user data outside the local environment.

Content

Scanner excerpt · SKILL.md (reported line 30)May include surrounding context.

  1. Submit the check.

    bash
    curl -sS -X POST https://rheono.dev/api/check-request \
  -H 'content-type: application/json' \
  -d '{"domain": "example.com", "email": "you@example.com"}'

Static analysis

No suspicious patterns detected.