CVE-2026-56317

EUVD-2026-38112
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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
2.3 LOW
NETWORK
LOW
NONE
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
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
nuxtnuxt
4.0.0 ≤
𝑥
< 4.4.7
CNA
nuxtnuxt
𝑥
< 3.21.7
CNA
Common Weakness Enumeration
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