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Exposed Dangerous Method or Function

CVE-2025-9611

High
7.2/10

Summary

Microsoft Playwright MCP Server versions prior to 0.0.40 fails to validate the Origin header on incoming connections. This allows an attacker to perform a DNS rebinding attack via a victims web browser and send unauthorized requests to a locally running MCP server, resulting in unintended invocation of MCP tool endpoints.

  • LOW
  • NETWORK
  • PASSIVE
  • NONE

CWE-749 - Exposed Dangerous Method or Function

The software provides an Applications Programming Interface (API) or similar interface for interaction with external actors, but the interface includes a dangerous method or function that is not properly restricted.

References

Advisory Timeline

  • Published