The GitHub Security Lab discovered sixteen ways to exploit a cross-site scripting vulnerability in nbconvert. When using nbconvert to generate an HTML version of a user-controllable notebook, it is possible to inject arbitrary HTML which may lead to cross-site scripting (XSS) vulnerabilities if these HTML notebooks are served by a web server (eg: nbviewer).
- https://github.com/jupyter/nbconvert/security/advisories/GHSA-9jmq-rx5f-8jwq
No PoCs found on GitHub currently.