CVE-2021-32862 HIGH

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

Vendor Jupyter
Product nbconvert
Weakness CWE-79 · XSS
Published August 18, 2022
Last update September 2, 2024
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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).

Key dates

02Disclosure timeline

August 18, 2022 CVE published
September 2, 2024 Record updated