{"cve":"CVE-2026-56317","nvd":{"published":"2026-06-20T16:17:05.733","modified":"2026-06-24T19:17:13.783","status":"Analyzed","description":"Nuxt before 4.4.7 (and the 3.x branch before 3.21.7) contains a cross-site scripting vulnerability in the NoScript component that writes slot content to innerHTML without escaping. Attackers can inject malicious scripts through untrusted data in NoScript slots, such as route.query parameters, which execute in the document context when the noscript tag is implicitly closed by script tags.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","score":2.3},"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/nuxt/nuxt/commit/4b054e9d95f8daf366cb144b52782047c511a66e","https://github.com/nuxt/nuxt/commit/7fea9fd687f1dacbfb63db5fae5839896b017a0e","https://github.com/nuxt/nuxt/security/advisories/GHSA-m3q2-p4fw-w38m","https://www.vulncheck.com/advisories/nuxt-cross-site-scripting-via-noscript-component-slot-content"],"products":["nuxt:nuxt"],"source":"nvd","synced_at":"2026-10-19T22:39:28.638635428+00:00"},"epss":{"cve":"CVE-2026-56317","score":0.00342,"percentile":0.27719,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-m3q2-p4fw-w38m","url":"https://osv.dev/vulnerability/GHSA-m3q2-p4fw-w38m","summary":"Cross-site scripting via <NoScript> slot content in Nuxt's head components","modified":"2026-09-10T00:00:07.977137430Z","packages":[{"ecosystem":"npm","name":"nuxt","purl":"pkg:npm/nuxt","ranges":[">=4.0.0 <4.4.7"],"fixed":["4.4.7"]},{"ecosystem":"npm","name":"nuxt","purl":"pkg:npm/nuxt","ranges":["<3.21.7"],"fixed":["3.21.7"]}]}],"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."]}