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Security audit

Playwright Browser Automation

Security checks across malware telemetry and agentic risk

Overview

This is a legitimate Playwright automation skill, but it includes a persistent passwordless sudoers setup that is too broad for normal installation.

Install only if you need direct Playwright automation. Do not copy the sudoers NOPASSWD rules; run any required dependency installation manually with administrator approval and remove temporary elevation afterward. Keep screenshots, recordings, downloads, traces, and auth.json or storageState files out of shared folders and source control, and delete them when no longer needed.

SkillSpector

By NVIDIA
Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Findings (5)

Lp3

Medium
Category
MCP Least Privilege
Confidence
88% confidence
Finding
The skill clearly instructs users to run shell commands such as npm install, npx playwright install, and sudo npx playwright install-deps, yet it declares no permissions for shell execution. This creates a trust and review gap: operators may treat the skill as low-privilege documentation while it materially depends on command execution, including optional privileged commands.

Context-Inappropriate Capability

Medium
Confidence
96% confidence
Finding
The documentation recommends passwordless sudoers entries for wildcard Playwright install commands. Granting NOPASSWD root execution to npx/playwright materially expands attack surface because package resolution and install helpers can change over time, and any compromise or misuse of those commands yields privileged code execution.

Missing User Warnings

Medium
Confidence
79% confidence
Finding
The skill advertises screenshots, PDFs, video recording, and data extraction without warning that it creates and persists local artifacts. In a browser automation context, those files may contain sensitive page contents, credentials, personal data, or internal application state, increasing the chance of unintentional data retention or disclosure.

Missing User Warnings

Medium
Confidence
93% confidence
Finding
The authentication examples normalize storing usernames/passwords, cookies, localStorage tokens, and storageState files without any warning about secret handling. In practice, these artifacts can be reused to hijack sessions or expose credentials if committed, logged, shared, or left on disk.

Missing User Warnings

High
Confidence
97% confidence
Finding
The sudoers example grants passwordless privileged command execution without warning about integrity and privilege-escalation risk. In this context, operators may copy-paste the configuration, unintentionally enabling a persistent local route to root for software installation workflows.

VirusTotal

66/66 vendors flagged this skill as clean.

View on VirusTotal

Static analysis

No suspicious patterns detected.