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Fencer Intel
medium 6.1

CVE-2015-6938 json

Improper Neutralization of Input During Web Page Generation in Jupyter Notebook

published 2015-09-21 11 y ago modified 2026-06-17 4 mo ago also GHSA-4vwq-x64q-j4cj , PYSEC-2015-24 , PYSEC-2015-26 , EUVD-2015-0023

cvss
6.1
version 3.1, GitHub
cisa kev
Not listed
not in CISA's catalog
epss
2.8%
EPSS 2.8% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

Cross-site scripting (XSS) vulnerability in the file browser in notebook/notebookapp.py in IPython Notebook before 3.2.2 and Jupyter Notebook 4.0.x before 4.0.5 allows remote attackers to inject arbitrary web script or HTML via a folder name. NOTE: this was originally reported as a cross-site request forgery (CSRF) vulnerability, but this may be inaccurate.

Patch / fix

  • pypi notebook 4.0.5
  • pypi ipython 3.2.2
  • ipython Debian 14, Debian 13, Debian 12 2.4.1-1

debian advisories DEBIAN-CVE-2015-6938

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-6938 updated cvss 4.3

ipython: XSS via local folder name

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.79% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/ipython/ipython/commit/3ab41641cf6fce3860c73d5cf4645aa12e1e5892 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/jupyter/notebook/commit/35f32dd2da804d108a3a3585b69ec3295b2677ed referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N
GitHub 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
pypi notebook
>=4.0.0, <4.0.5
4.0.5
pypi ipython
<3.2.2
3.2.2

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.