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Security audit

Oc Browser Automation 1.0.0

Security checks for vulnerabilities and agentic risk

Overview

This browser automation skill is coherent but broad enough to merit review because it can act through browser sessions and transfer files with very generic triggers.

Install only if you want a general browser-control helper. Use it deliberately, avoid connecting it to your personal Chrome profile unless needed, confirm uploads/downloads and destinations, and do not share screenshots or snapshots from logged-in sessions unless you have checked them for sensitive data.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • 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
96% confidence
Finding

The trigger set includes generic terms like '浏览器', '浏览网页', and 'browser', which are likely to match ordinary user requests and invoke this skill unintentionally. Because the skill can open pages, click, type, upload, download, and manipulate browser state, accidental activation expands the chance of unintended web actions and exposure of session-linked data.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

The skill advertises file upload and download capabilities but does not prominently warn that these actions can move local data to remote sites or persist remote content locally. In a browser-automation context, this increases the risk of accidental data exfiltration, ingestion of untrusted files, or misuse of authenticated browser sessions.

Content

No source excerpt is available for this finding.

Overly Broad Trigger

Low
Category
Trigger Abuse
Confidence
97% confidence
Finding

The trigger '截图' is extremely short and common, so routine requests for screenshots could invoke this powerful browser-control skill without the user intending to grant web automation capabilities. Even though the trigger itself is not harmful, unintended invocation can become a gateway to broader browser actions in the same skill.

Content

No source excerpt is available for this finding.