XSS in Nuxt
CVE-2026-56317
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 d…
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.002 (11.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Nuxt — versions 4.0.0, 4.4.7, 0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory, Patch, Mitigation, Vendor Advisory)
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (Patch, Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-56317?
- CVE-2026-56317 is a medium-severity vulnerability in Nuxt, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-06-20.
- How severe is CVE-2026-56317?
- Medium severity. CVSS v3 base score is 6.1 out of 10.