Critical-risk tools in Playwright

Critical severity Playwright MCP Server 7 of 68 tools

7 of the 68 tools in Playwright are classified as critical risk. This page profiles those tools specifically, with recommended policy actions and the attack patterns that target them.

Every operation listed below is an action PolicyLayer recommends controlling at the transport layer. Open any tool to see the full profile, risk score, and YAML policy snippet.

Tools at critical risk

browser_cookie_clear Destructive

browser_cookie_clear
browser_cookie_delete Destructive

browser_cookie_delete
browser_localstorage_clear Destructive

browser_localstorage_clear
browser_localstorage_delete Destructive

browser_localstorage_delete
browser_sessionstorage_clear Destructive

browser_sessionstorage_clear
browser_sessionstorage_delete Destructive

browser_sessionstorage_delete
browser_close Destructive

browser_close

Attacks that target this class

Critical-risk tools in any server share these documented attack patterns. Each links to the full case and the defensive policy.

Destructive Action Autonomy
Privilege escalation via admin-only tools
Data exfiltration via tool chaining
Runaway Tool Loops

Critical-risk tools in Playwright

Tools at critical risk

Attacks that target this class

More on Playwright

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