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Security audit

falimagegen

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward fal.ai image-generation helper that sends prompts or images to fal only as part of its stated purpose.

Install this if you want an agent to help call fal.ai image-generation APIs. Use a scoped FAL key, avoid sending sensitive prompts or private images unless you intend to share them with fal, and review generated requests before execution in sensitive projects.

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 (3)

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 90)May include surrounding context.

REST (curl)

bash
# Pseudocode: replace endpoint, headers, and payload schema from docs
curl -X POST "https://<fal-api-base>/<model-endpoint>" \
  -H "Authorization: Bearer <API_KEY>" \
  -H "Content-Type: application/json" \
  -d '{

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

This markdown file includes examples that upload an image and send prompts to remote fal API endpoints, which can affect user privacy by transmitting user-provided content to a third-party service. The surrounding documentation presents these as templates but does not include any warning or disclosure about external network transmission or handling sensitive content.

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 · references/fal-model-examples.md (reported line 54)May include surrounding context.

REST (Queue API, Text-to-Image)

bash
curl -X POST "https://queue.fal.run/fal-ai/fast-sdxl" \
  -H "Authorization: Key $FAL_KEY" \
  -H "Content-Type: application/json" \
  -d '{"prompt": "a cat"}'

Static analysis

No suspicious patterns detected.