SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-19351

Jupyter Notebook before 5.7.1 allows XSS via an untrusted notebook because nbconvert responses are considered to have the same origin as the notebook server.

MEDIUM 6.1EPSS 1.51%

Does this matter?

Lower severity and a low EPSS score (1.51%). Track it; it rarely justifies an emergency change on its own.

Description

Jupyter Notebook before 5.7.1 allows XSS via an untrusted notebook because nbconvert responses are considered to have the same origin as the notebook server. In other words, nbconvert endpoints can execute JavaScript with access to the server API. In notebook/nbconvert/handlers.py, NbconvertFileHandler and NbconvertPostHandler do not set a Content Security Policy to prevent this.

CVSS 3.0
6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
1.51% probability · 73th percentile
CISA KEV
Not listed
Weakness
CWE-79
Affected
jupyter/notebook
Source
cve@mitre.org

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.