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Security audit

Browser QA

Security checks for vulnerabilities and agentic risk

Overview

This browser QA skill is not malicious, but it needs review because it tells agents to test forms, login, and checkout flows without clear safeguards for live sites.

Install only if you will use it against sites you own or have permission to test. Before running it, specify a staging or sandbox URL, use test accounts and test payment data, and tell the agent not to submit forms, create accounts, or complete checkout on production unless you explicitly approve that exact action.

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 (2)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
88% confidence
Finding

The trigger phrases are broad enough to match ordinary requests for testing, UI verification, or QA help, which can cause this skill to activate in situations the user did not explicitly intend. Because the skill encourages browser-driven interaction and screenshots, overbroad activation increases the chance of unintended testing actions against real sites or workflows.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The skill instructs automated interaction testing of forms, authentication, checkout, and other user journeys without warning that these actions may create accounts, submit data, place orders, or affect production systems. In context, this is more dangerous because the workflow explicitly includes login and checkout flows, making unintended state-changing actions likely if the skill is run against live environments.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.