MCP server official
Risk level
low
20/100

Playwright MCP ↗

Playwright MCP is an officially published MCP server from Microsoft. Anomity scores its risk at 20 out of 100 (low).

browser:control filesystem:write network:outbound

Analysis summary

Playwright MCP is an officially published MCP server from Microsoft. Anomity scores its risk at 20 out of 100 (low).

Microsoft's official browser-automation MCP server, built on Playwright and one of the most widely installed servers in the ecosystem. It drives a real browser for an agent: navigating, clicking, filling forms, reading the accessibility tree, and capturing screenshots or traces.

Browser control is the capability to reason about, and it is broader than it sounds. A driven browser can reach internal sites, act inside sessions that are already authenticated, and read anything rendered on screen — and every page it visits is untrusted input flowing back into the agent's context. Combined with the filesystem writes it uses for traces and screenshots, a compromised loop can both act on your behalf and persist what it found. Run it against a dedicated profile rather than your daily browser, and never one holding production credentials.

Why this entry scored 20 out of 100

This profile starts at the catalog's neutral base of 50. Because the entry is officially published, trust adjusts the score by -40. Declared high-risk capabilities add +10 (capped at +30). It matches no dangerous capability combinations. The clamped result is 20, placing it in the low band.

See the full scoring formula →

Findings

  • Published by the vendor Trust offset
    Contribution to score: -40
  • 1 high-risk capability: filesystem:write High
    Contribution to score: +10

Capabilities

Every capability the entry declares, with the security implication of each.

  • browser:control Browser control
    Drives a browser session. Combined with credential access can impersonate the user on web services.
  • filesystem:write Filesystem write
    Can create, edit, or delete files on the host system. High-impact capability — anything from helpful edits to planting persistence.
  • network:outbound Outbound network
    Can make outbound network requests. Required for hosted model providers and remote APIs; also the path for data exfiltration if combined with read access.