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Security audit

Extract website assets

Security checks for vulnerabilities and agentic risk

Overview

This skill appears benign: it extracts website media through a disclosed external API and does not install code, persist itself, or request unusual local privileges.

Before installing, consider that page URLs will be sent to MiroMiro's API, use may consume credits, and render mode runs the target page in a remote browser. Also review rights before reusing extracted logos, photos, audio, or video.

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
Vulnerability Patterns
  • Memory PoisoningPersistent Context Injection, Context Window Stuffing, Memory Manipulation
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (2)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
89% confidence
Finding

The activation guidance says to use the skill when the user asks to "grab, download, recover, list, or find assets on a website." Several of these phrases are broad and could match ordinary requests without clearly delimiting when this skill should or should not activate. The description does not provide exclusion conditions or negative examples to narrow invocation scope.

Content

No source excerpt is available for this finding.

Context Window Stuffing

Medium
Category
Memory Poisoning
Confidence
85% confidence
Finding

Skill attempts to fill the context window with filler content, displacing legitimate instructions and safety constraints. This can degrade agent performance or bypass safety boundaries.

Content

Scanner excerpt · SKILL.md (reported line 58)May include surrounding context.

md
## Result caps

Remote results are trimmed so a large page cannot flood the context, and every trimmed
response states what was dropped. Two optional arguments loosen it:

- `limit` — raise the item cap, up to 200

Static analysis

No suspicious patterns detected.