{"id":"CVE-2023-54398","state":"PUBLISHED","title":"Yonyou U8 Cloud Java Deserialization RCE via FileManageServlet","description":"Yonyou U8 Cloud contains an unauthenticated Java deserialization vulnerability in the nc.impl.pub.filesystem.FileManageServlet component that allows remote unauthenticated attackers to execute arbitrary OS commands by sending a serialized payload via POST request. Attackers can exploit the doAction method, which passes raw HTTP request body data directly to ObjectInputStream.readObject() without filtering, to achieve remote code execution. 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