Cross-Site Scripting Vulnerability in Nuxt by Nuxt.js
CVE-2026-56317

2.3LOW

Key Information:

Vendor

Nuxt

Status
Nuxt
Vendor
CVE Published:
20 June 2026

What is CVE-2026-56317?

Nuxt versions prior to 4.4.7 and the 3.x branch before 3.21.7 contain a cross-site scripting vulnerability in the NoScript component. This flaw arises as the NoScript component writes slot content to innerHTML without proper escaping. Attackers can exploit this vulnerability by injecting malicious scripts through untrusted data supplied to NoScript slots, such as route.query parameters. When the noscript element is implicitly closed by script tags, these scripts execute in the document context, potentially leading to unauthorized actions and data exposure.

Affected Version(s)

Nuxt 4.0.0 < 4.4.7

Nuxt 0 < 3.21.7

Nuxt 4.4.7

References

https://github.com/nuxt/nuxt/security/advisories/GHSA-m3q...
vendor-advisory
https://github.com/nuxt/nuxt/commit/4b054e9d95f8daf366cb1...
patch
https://github.com/nuxt/nuxt/commit/7fea9fd687f1dacbfb63d...
patch

CVSS V4

Score:
2.3
Severity:
LOW
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

alcls01111
.