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Jupyter Notebook before 5.7.1 allows XSS via an untrusted notebook because nbconvert responses are considered to have the same origin as the notebook server. In other words, nbconvert endpoints can execute JavaScript with access to the server API. In notebook/nbconvert/handlers.py, NbconvertFileHandler and NbconvertPostHandler do not set a Content Security Policy to prevent this. References: https://github.com/jupyter/notebook/blob/master/docs/source/changelog.rst https://github.com/jupyter/notebook/commit/107a89fce5f413fb5728c1c5d2c7788e1fb17491 https://groups.google.com/forum/#!topic/jupyter/hWzu2BSsplY https://pypi.org/project/notebook/#history
Created python-notebook tracking bugs for this issue: Affects: fedora-all [bug 1651976]
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.