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Security audit

Freysa Security

Security checks for vulnerabilities and agentic risk

Overview

The skill is mostly a disclosed paid API wrapper, but its CAPTCHA-solving feature lacks authorization and anti-abuse safeguards.

Review the CAPTCHA-solving capability carefully and use it only where you are authorized to solve the challenge. If installing, avoid setting FREYSA_WALLET_KEY unless you understand the wallet/payment risk, and expect token, wallet, URL, or CAPTCHA inputs to be sent to Freysa and relevant backends when those endpoints are 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
  • 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 (4)

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The skill explicitly offers CAPTCHA-solving via a third-party backend without any warning about abuse potential, legal/policy restrictions, or what challenge data is transmitted externally. CAPTCHA solving is commonly used to bypass anti-abuse controls, so omitting safeguards and disclosure materially increases misuse risk for downstream agents.

Content

No source excerpt is available for this finding.

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 71)May include surrounding context.

bash
# 1. Call endpoint → get 402
curl -X POST https://economic-agent-369.freysa.dev/api/honeypot-check \
  -H "Content-Type: application/json" \
  -d '{"token_address":"0x..."}'

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 88)May include surrounding context.

python
from x402 import x402_requests
response = x402_requests.post(
    "https://economic-agent-369.freysa.dev/api/honeypot-check",
    json={"token_address": "0x..."},
    wallet=my_wallet

External Transmission

Medium
Category
Data Exfiltration
Confidence
70% 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 88)May include surrounding context.

python
from x402 import x402_requests
response = x402_requests.post(
    "https://economic-agent-369.freysa.dev/api/honeypot-check",
    json={"token_address": "0x..."},
    wallet=my_wallet

Static analysis

No suspicious patterns detected.