CVE-2021-32797

JupyterLab: XSS due to lack of sanitization of the action attribute of an html <form>

State: Published
Severity: 7.4 High
Published: Aug 9, 2021
Updated: Aug 3, 2024
Reserved: May 12, 2021

Description

JupyterLab is a user interface for Project Jupyter which will eventually replace the classic Jupyter Notebook. In affected versions untrusted notebook can execute code on load. In particular JupyterLab doesn’t sanitize the action attribute of html `<form>`. Using this it is possible to trigger the form validation outside of the form itself. This is a remote code execution, but requires user action to open a notebook.

Scores

CVSS	Score	Vector	Source
3.1	7.4 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N	GitHub_M

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
jupyterlabjupyterlab	>= 3.1.0, < 3.1.4Affected >= 3.0.0, < 3.0.17Affected >= 2.3.0, < 2.3.2Affected >= 2.0.0, < 2.2.10Affected < 1.2.1Affected

References

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