CVE-2021-32862 — Vulnetix

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CVE-2021-32862 PUBLISHED

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).

EPSS 0.79% · 73.7th percentile

Risk Scores

EPSS Score

0.79%

73.7th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:22.04:LTS	nbconvert	0, 6.4.0-1, 6.3.0-1
Ubuntu:20.04:LTS	nbconvert	5.6.1-1, 0, 5.6.0-1
Ubuntu:18.04:LTS	nbconvert	0, 5.3.1-1, 4.2.0-4

Timeline

Aug 10, 2022 CVE Published
Aug 19, 2022 EPSS Score
Oct 3, 2022 EPSS Score
Nov 18, 2022 EPSS Score
Jan 2, 2023 EPSS Score
Mar 7, 2023 EPSS Score
Apr 2, 2023 EPSS Score
May 18, 2023 EPSS Score
Jul 2, 2023 EPSS Score
Aug 16, 2023 EPSS Score
Sep 30, 2023 EPSS Score
Nov 15, 2023 EPSS Score

References

https://ubuntu.com/security/CVE-2021-32862 third-party-advisory
https://github.com/jupyter/nbconvert/security/advisories/GHSA-9jmq-rx5f-8jwq third-party-advisory
https://github.com/jupyter/nbviewer/security/advisories/GHSA-h274-fcvj-h2wm third-party-advisory
https://www.cve.org/CVERecord?id=CVE-2021-32862 third-party-advisory

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