What is CVE-2019-9644?

CVE-2019-9644 is a medium-severity vulnerability in Jupyter Notebook, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-03-12.

How severe is CVE-2019-9644?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2019-9644 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Jupyter Notebook

CVE-2019-9644

An XSSI (cross-site inclusion) vulnerability in Jupyter Notebook before 5.7.6 allows inclusion of resources on malicious pages when visited by users who are authenticated with a Jupyter server. Access to the content of resources has been demonstrated with Internet Explorer through capturing of error messages, though not reproduced with other browsers. This occurs because Internet Explorer's error messages can include the content of any invalid JavaScript that was encountered.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.015 (73.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

Affected products

Jupyter Notebook
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
cve@mitre.org (x_refsource_FEDORA, vendor-advisory)

Frequently asked questions

What is CVE-2019-9644?: CVE-2019-9644 is a medium-severity vulnerability in Jupyter Notebook, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-03-12.
How severe is CVE-2019-9644?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2019-9644 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.