{"cve":"CVE-2025-66648","nvd":{"published":"2026-01-05T22:15:51.400","modified":"2026-10-14T19:10:00.297","status":"Analyzed","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["https://github.com/vega/vega/security/advisories/GHSA-m9rg-mr6g-75gm"],"products":["vega-functions_project:vega-functions"],"source":"nvd","synced_at":"2026-10-19T22:19:41.481987139+00:00"},"epss":{"cve":"CVE-2025-66648","score":0.00226,"percentile":0.13132,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-m9rg-mr6g-75gm","url":"https://osv.dev/vulnerability/GHSA-m9rg-mr6g-75gm","summary":"`vega-functions` vulnerable to Cross-site Scripting via `setdata` function","modified":"2026-09-10T03:50:33.310775301Z","packages":[{"ecosystem":"npm","name":"vega-functions","purl":"pkg:npm/vega-functions","ranges":["<6.1.1"],"fixed":["6.1.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}