CVE-2021-32862CWE-79

nbconvert vulnerable to cross-site scripting (XSS) via multiple exploit paths

High · published August 18, 2022

CVSS v3.1
7.5
EPSS
1%
Percentile
73.7
In the wild
Unconfirmed
What it is

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).

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01476 · 73.7th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2022-08-18T00:00Z
EPSS history
Timeline
  • 18 AUG 00:00Z
    nbconvert vulnerable to cross-site scripting (XSS) via multiple exploit paths
    cvelistv5