CVE-2021-32862 – nbconvert vulnerable to cross-site scripting (XSS) via multiple exploit paths

https://notcve.org/view.php?id=CVE-2021-32862

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). GitHub Security Lab detectó dieciséis formas de explotar una vulnerabilidad de tipo cross-site scripting en nbconvert. Cuando es usado nbconvert para generar una versión HTML de un cuaderno controlable por el usuario, es posible inyectar HTML arbitrario que puede conllevar a vulnerabilidades de tipo cross-site scripting (XSS) si estos cuadernos HTML son servidos por un servidor web (por ejemplo: nbviewer). • https://github.com/jupyter/nbconvert/security/advisories/GHSA-9jmq-rx5f-8jwq https://github.com/jupyter/nbviewer/security/advisories/GHSA-h274-fcvj-h2wm https://lists.debian.org/debian-lts-announce/2023/06/msg00003.html • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •