7.2

CVE-2025-66648: vega-functions_project vega-functions Cross-site Scripting

CVSS: 7.2v3.1HighAnalyzed
AliasesUBUNTU-CVE-2025-66648DEBIAN-CVE-2025-66648CGA-23w8-8327-f659
Published 05-01-2026Last modified 06-01-2026
Open JSON

Vulnerability summary

CVE-2025-66648 is a high (CVSS 7.2) Cross-site Scripting vulnerability in vega-functions_project vega-functions. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 12.5% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
39/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.2/10
010
High · v3.1 (CVE.org)
EPSS score
0.23%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-7HHM-2FJ7-M3PM

Timeline

  1. 05-01-2026
    PublishedVulnerability first disclosed.
  2. 06-01-2026
    Last modifiedVulnerability information updated.

Description

vega-functions provides function implementations for the Vega expression language. Prior to version 6.1.1, for sites that allow users to supply untrusted user input, malicious use of an internal function (not part of the public API) could be used to run unintentional javascript (XSS). This issue is fixed in vega-functions `6.1.1`. There is no workaround besides upgrading. Using `vega.expressionInterpreter` as described in CSP safe mode does not prevent this issue.

CVSS metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

13%

Versus all other CVEs

30-day change

0.00 pp

From 0.22% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.23%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Vega

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Chainguard7 products
  • jupyter-base-notebook< 7.6.3-r2
  • py3.10-jupyterlab< 4.6.1-r1
  • py3.11-jupyterlab< 4.6.1-r1
  • py3.12-jupyterlab< 4.6.1-r1
  • py3.13-jupyterlab< 4.6.1-r1
Wolfi5 products
  • jupyter-base-notebook< 7.6.3-r2
  • py3.10-jupyterlab< 4.6.1-r1
  • py3.11-jupyterlab< 4.6.1-r1
  • py3.12-jupyterlab< 4.6.1-r1
  • py3.13-jupyterlab< 4.6.1-r1
Debian1 product
  • vega.jsAll versions (No fix recorded) | < 5.33.1+ds+~cs5.3.0-2
Npm1 product
  • vega-functions< 6.1.1
Ubuntu1 product
  • vega.jsAll versions (No fix recorded)
Vega1 product
Vega-functions_project1 product

7 vendors · 17 products

References

7 links