Description
An issue was discovered in Manolo GWTUpload 1.0.3. server/UploadServlet.java (the servlet for handling file upload) accepts a delay parameter that causes a thread to sleep. It can be abused to cause all of a server's threads to sleep, leading to denial of service.
Remediation
References
https://github.com/manolo/gwtupload/issues/33
https://logicaltrust.net/blog/2020/02/gwt-upload.html
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