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Security audit

Web Navigator

Security checks for vulnerabilities and agentic risk

Overview

This appears to be an unfinished skill template, not a harmful skill, but it should not be installed as a useful web-navigation skill until completed.

Do not rely on this as a finished web-navigation skill. Ask the publisher to replace the TODOs with a clear purpose, activation criteria, allowed and prohibited browsing actions, and confirmation requirements before installing it for normal use.

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
  • 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
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (3)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
97% confidence
Finding

The skill description and activation guidance are left as TODO text, so there is no defined scope for when this skill should or should not be invoked. In an agent system, ambiguous triggers can cause inappropriate activation, misuse of web-access capabilities, or unsafe behavior because operators and downstream tooling cannot distinguish intended from unintended use cases.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The overview section is unfinished and provides no operational context, constraints, or expected behavior. For a web navigation skill, missing boundaries increases risk because the agent may perform broad or unintended browsing actions without guidance on allowed domains, sensitive actions to avoid, or required user confirmation points.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The main body of the skill is still template placeholder content rather than concrete instructions, leaving the actual behavior undefined. This is dangerous because a partially specified skill—especially one involving web navigation—can be activated without enforceable procedures, resulting in inconsistent decisions, overbroad actions, or accidental interaction with untrusted or sensitive web content.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.