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Security audit

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Security checks for vulnerabilities and agentic risk

Overview

This skill does what it claims, but local images may be uploaded to a third party and exposed through permanent unsigned public URLs.

Install only if you are comfortable sending product images and your Flyelep API key to Flyelep. Avoid using local files that contain confidential, personal, regulated, unreleased, or metadata-sensitive content unless you understand that the upload flow may create a permanent public URL with no documented deletion or expiry control.

A.I.G

Vulnerability Patterns
  • Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
  • 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
Findings (1)

T09 · Insecure Skill Coding Practices

Error
Location
SKILL.md:112
Finding

Local Images Are Published Through Permanent Unsigned URLs

Content
View full analysis
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 (2)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The manifest description forces a specific language/locale in its natural-language instructions, which can violate policy when no user opt-in or alternative language is offered. This is reinforced by the rest of the document being entirely Chinese, suggesting the skill assumes Chinese-only interaction by default.

Content

No source excerpt is available for this finding.

External Transmission

Medium
Category
Data Exfiltration
Confidence
86% confidence
Finding

The skill explicitly instructs the agent to upload user-supplied files and send image URLs plus a user-provided secretKey to an external third-party service. Even though this is the intended function of the skill, it creates a real data-transmission boundary: sensitive product images, potentially proprietary assets, and authentication material are sent off-platform, which can lead to confidentiality, compliance, or accidental secret-handling risks if users are not clearly warned and secrets are logged or retained.

Content

Scanner excerpt · SKILL.md (reported line 143)May include surrounding context.

判断成功只看 code，业务失败时 HTTP 状态码仍是 200，code 为 500 或 9999，原因在 msg 里。

bash
# Windows/PowerShell（用 curl.exe，PowerShell 里的 curl 是 Invoke-WebRequest 的别名）
curl.exe -X POST "https://www.flyelep.cn/prod-api/poster-design/api/v1/file/upload" -H "secretKey: 你的密钥" --max-time 120 -F "file=@C:/path/to/product.png"

# macOS/Linux

Static analysis

No suspicious patterns detected.