CVE-2021-32862

Summary

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).

Affected Software

Weaknesses

• CWE-79: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

ADP Enrichment

CVE Program Container

Additional References

• 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
• https://lists.debian.org/debian-lts-announce/2024/09/msg00004.html

References

• 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

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