AutoJack lets a web page hijack an AI agent to execute host code

Intelligence Summary

Microsoft researchers describe an exploit chain dubbed AutoJack. An attacker can trick an AI browsing agent into visiting a malicious web page. The page’s JavaScript can then reach a privileged local service on the same machine. This can lead to remote code execution and process spawning on the host without user credentials. The issue matters because it turns AI-assisted web interactions into a new route for local compromise, even after minimal or no further user action.

Recommended Action

Prioritize immediate review, validate exposure, and patch or mitigate affected systems.

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