# CVE-2024-28233: PYSEC-2026-1480 - Cross site scripting (XSS) in JupyterHub via Self-XSS leveraged by Cookie Tossing

Source: https://junglewise.ai/threats/cve-2024-28233-cross-site-scripting-xss-in-jupyterhub-via-self-xss-leveraged-by  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-07  
License: CC BY 4.0 with a link back

CVE-2024-28233 · Severity: low · CVSS 3.1 · Published 2026-07-07

Cross site scripting (XSS) in JupyterHub via Self-XSS leveraged by Cookie Tossing

Technologies: [jupyterhub (PyPI)](https://junglewise.ai/threats/technologies/jupyterhub). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2024-28233 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2024-28233 being exploited in the wild.

**How severe is CVE-2024-28233?** Low severity, with a CVSS score of 3.1, published 7 July 2026.

**Which products and versions are affected?** jupyterhub (PyPI) ECOSYSTEM:introduced=0,fixed=4.1.0.

**Is there a fix for CVE-2024-28233?** Yes. jupyterhub (PyPI): upgrade to 4.1.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2024-28233?** Check whether you run jupyterhub (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- jupyterhub (PyPI): upgrade to 4.1.0 or later

  ```sh
  pip install "jupyterhub>=4.1.0"
  ```


## Affected products

- jupyterhub (PyPI) ECOSYSTEM:introduced=0,fixed=4.1.0

## Identifiers

- CVE-2024-28233
- GHSA-7r3h-4ph8-w38g
- PYSEC-2026-1480

## Related threats

- [JupyterHub unauthenticated denial of service in login form handling](https://junglewise.ai/threats/cve-2026-54338-jupyterhub-unauthenticated-denial-of-service-in-login-form)
- [PYSEC-2026-647 - Open Redirect vulnerability in jupyterhub and notebook](https://junglewise.ai/threats/cve-2019-10255-open-redirect-vulnerability-in-jupyterhub-and-notebook)
- [JupyterHub XSRF protection bypass in HTTP form endpoints](https://junglewise.ai/threats/cve-2026-40864-jupyterhub-xsrf-protection-bypass-in-http-form-endpoints)
- [Jupyter JupyterHub open redirect vulnerability](https://junglewise.ai/threats/cve-2026-33709-jupyter-jupyterhub-open-redirect-vulnerability)
- [JupyterHub has a privilege escalation vulnerability with the `admin:users` scope](https://junglewise.ai/threats/cve-2024-41942-jupyterhub-has-a-privilege-escalation-vulnerability-with-the)