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SCA: security update for nbgrader (GHSA-fcr8-4r9f-r66m)

medium Tenable Self-Hosted Container Security Plugin ID 414452

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - nbgrader is a system for assigning and grading notebooks. Enabling frame-ancestors: 'self' grants any
 JupyterHub user the ability to extract formgrader content by sending malicious links to users with access
 to formgrader, at least when using the default JupyterHub configuration of `enable_subdomains = False`.
 #1915 disables a protection which would allow user Alice to craft a page embedding formgrader in an
 IFrame. If Bob visits that page, his credentials will be sent and the formgrader page loaded. Because
 Alice's page is on the same Origin as the formgrader iframe, Javasript on Alice's page has _full access_
 to the contents of the page served by formgrader using Bob's credentials. This issue has been addressed in
 release 0.9.5 and all users are advised to upgrade. Users unable to upgrade may disable `frame-ancestors:
 self`, or enable per-user and per-service subdomains with `JupyterHub.enable_subdomains = True` (then even
 if embedding in an IFrame is allowed, the host page does not have access to the contents of the frame).
 (CVE-2025-23205)

See Also

https://github.com/advisories/GHSA-fcr8-4r9f-r66m

Plugin Details

Severity: Medium

ID: 414452

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2025-23205

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 4.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 1/17/2025

Vulnerability Publication Date: 1/17/2025

Reference Information

CVE: CVE-2025-23205