Security audit

bitfence

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed, read-only token risk-check helper that sends limited token data to Bitfence with user consent for paid checks.

Before installing, understand that Bitfence checks are paid x402 requests using USDC on Base mainnet. Use contextual analysis only when you are comfortable sharing position size and total portfolio size in USD with Bitfence; the skill does not ask to sign trades or move funds.

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 (5)

External Transmission

Medium

Category: Data Exfiltration
Confidence: 50% 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 77)May include surrounding context.
Token risk only — use when the position size is not yet known:

text
GET https://api.bitfence.ai/v1/risk/{chain}/{token_address}

Supported chains: solana, base, ethereum, arbitrum, bsc, hyperevm (lowercase).

External Transmission

Medium

Category: Data Exfiltration
Confidence: 50% 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 84)May include surrounding context.
Token risk only — use when the position size is not yet known:

text
GET https://api.bitfence.ai/v1/risk/{chain}/{token_address}

Supported chains: solana, base, ethereum, arbitrum, bsc, hyperevm (lowercase).

External Transmission

Medium

Category: Data Exfiltration
Confidence: 50% 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 85)May include surrounding context.
Token risk only — use when the position size is not yet known:

text
GET https://api.bitfence.ai/v1/risk/{chain}/{token_address}

Supported chains: solana, base, ethereum, arbitrum, bsc, hyperevm (lowercase).

External Transmission

Medium

Category: Data Exfiltration
Confidence: 50% 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 86)May include surrounding context.
Token risk only — use when the position size is not yet known:

text
GET https://api.bitfence.ai/v1/risk/{chain}/{token_address}

Supported chains: solana, base, ethereum, arbitrum, bsc, hyperevm (lowercase).

External Transmission

Medium

Category: Data Exfiltration
Confidence: 50% 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 92)May include surrounding context.
Token risk only — use when the position size is not yet known:

text
GET https://api.bitfence.ai/v1/risk/{chain}/{token_address}

Supported chains: solana, base, ethereum, arbitrum, bsc, hyperevm (lowercase).