XSS in Jupyter Jupyterlab
CVE-2021-32797
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…
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.026 (83.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N.
Affected products
- Jupyter Jupyterlab
- Jupyterlab — versions >= 3.1.0, < 3.1.4, >= 3.0.0, < 3.0.17, >= 2.3.0, < 2.3.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-32797?
- CVE-2021-32797 is a high-severity vulnerability in Jupyter Jupyterlab, classified under Cross-site Scripting. CVSS score: 7.4/10. Published 2021-08-09.
- How severe is CVE-2021-32797?
- High severity. CVSS v3 base score is 7.4 out of 10.
- Is CVE-2021-32797 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.