MediumGHSA-phwv-c562-gvmhCVE-2026-27901

Svelte vulnerable to XSS during SSR with contenteditable `bind:innerText` and `bind:textContent`

Published 26 Feb 2026 · Updated 10 Sept 2026

Affected package

sveltenpm
Affected
<5.53.5
Fixed in
5.53.5
Update to the fixed version for your release line, for example:npm install svelte@5.53.5

Details

The contents of bind:innerText and bind:textContent on contenteditable elements were not properly escaped. This could enable HTML injection and Cross-site Scripting (XSS) if rendering untrusted data as the binding's initial value on the server.

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References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.