CVE-2026-56317
LOW EPSS 11.1%
Published Jun 20, 20261w ago · Modified Jun 23, 20261w ago
2.3 CVSS 4.0
Published Jun 20, 2026 1w ago
Last Modified Jun 23, 2026 1w ago
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 Details
Base Score
Exploitability
Impact
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction P
Scope X
Threat Intelligence
EPSS Exploit Probability
11.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-79 Cross-site Scripting Injection
Affected Products 2
References 4
- github.com https://github.com/nuxt/nuxt/commit/4b054e9d95f8daf366cb144b52782047c511a66e
- github.com https://github.com/nuxt/nuxt/commit/7fea9fd687f1dacbfb63db5fae5839896b017a0e
- github.com https://github.com/nuxt/nuxt/security/advisories/GHSA-m3q2-p4fw-w38m
- vulncheck.com https://www.vulncheck.com/advisories/nuxt-cross-site-scripting-via-noscript-component-slot-content
Remediation
- github.com https://github.com/nuxt/nuxt/commit/4b054e9d95f8daf366cb144b52782047c511a66e
- github.com https://github.com/nuxt/nuxt/commit/7fea9fd687f1dacbfb63db5fae5839896b017a0e
- github.com https://github.com/nuxt/nuxt/security/advisories/GHSA-m3q2-p4fw-w38m
- vulncheck.com https://www.vulncheck.com/advisories/nuxt-cross-site-scripting-via-noscript-component-slot-content