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[GHSA-934w-87qh-qr26] Nuxt: Reflected XSS in <NuxtLink> via unsanitised javascript: or data: URL - #8957

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[GHSA-934w-87qh-qr26] Nuxt: Reflected XSS in <NuxtLink> via unsanitised javascript: or data: URL#8957
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@sealonohana

@sealonohana sealonohana commented Aug 3, 2026

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Fix: nuxt/nuxt@5328404
Sink: <NuxtLink> returns href unsanitized (no isScriptProtocol guard) in packages/nuxt/src/app/components/nuxt-link.ts.
Introduced by: nuxt/nuxt@4cefce4 — "feat(nuxt3): add <NuxtLink> component" (#3544). The unsanitized-href behavior has existed since the component was created.
First released: Nuxt v3.0.0.

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github commented Aug 3, 2026

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Hi there @danielroe! A community member has suggested an improvement to your security advisory. If approved, this change will affect the global advisory listed at github.com/advisories. It will not affect the version listed in your project repository.

This change will be reviewed by our Security Curation Team. If you have thoughts or feedback, please share them in a comment here! If this PR has already been closed, you can start a new community contribution for this advisory

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github-actions Bot changed the base branch from main to sealonohana/advisory-improvement-8957 August 3, 2026 11:08
"events": [
{
"introduced": "0"
"introduced": "3.0.0"

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0 is more accurate as marking at 3.0.0 marks rc candidates for v3 as safe, but they are not

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