CVE-2025-9611

medium Microsoft
EPSS Score
0.3%
Exploitation probability in 30 days
Top 52% most likely to be exploited
Published: January 7, 2026 (127 days ago)
Last Modified: January 8, 2026
Vendor: Microsoft

Description

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 victim’s web browser and send unauthorized requests to a locally running MCP server, resulting in unintended invocation of MCP tool endpoints.

CWE

CWE-749

References

🔗 github.com 🔗 github.com 🔗 www.vulncheck.com