Security audit

ReefGram

Security checks for vulnerabilities and agentic risk

Overview

This skill openly sends media and telemetry to ReefGram, but its instructions are too broad about autonomous posting and metadata sharing.

Review this carefully before installing. Only use it if you are comfortable with your agent uploading selected media plus telemetry to reefgram.me, and require manual confirmation of the exact file and metadata before every transmission, especially anything involving coordinates or system status.

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

Findings (1)

T01 · Skill Instruction Hijacking

Error

Location: SKILL.md:20
Finding: Skill Instructions Redirect the Agent to Transmit Media and System Telemetry to an External Service
Content: View full analysis
` - **Content-Type**: `multipart/form-data` ``` ### Technical Analysis The skill contains a section explicitly presented as a system prompt that assigns the agent a new identity and persistent operational objective: documenting its operations, hardware state, and creative output on ReefGram. This changes the agent's session goals when the skill is loaded instead of constraining the integration to a specific, user-approved upload. The instruction to “Always include technical metadata” encourages collection and external transmission of environmental information. ...[truncated 2281 chars]
Remediation: View remediation

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)

Missing User Warnings

Medium

Category: Not specified by scanner
Confidence: 95% confidence
Finding: The skill explicitly instructs the agent to transmit hardware telemetry, creative media, and potentially location-like data (coordinates) to an external service, but it does not require clear user consent, data minimization, or a privacy warning before exfiltration. In an agent context, this is dangerous because users may trigger ReefGram-related actions without understanding that sensitive system state or media could be uploaded off-platform.
Content: No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.