5.1
Moyenne
CVE-2026-27121 svelte performance oriented web framework
Description
svelte performance oriented web framework. Versions of svelte prior to 5.51.5 are vulnerable to cross-site scripting (XSS) during server-side rendering. When using spread syntax to render attributes from untrusted data, event handler properties are included in the rendered HTML output. If an application spreads user-controlled or external data as element attributes, an attacker can inject malicious event handlers that execute in victims' browsers. This vulnerability is fixed in 5.51.5.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| svelte 5.51 | premières → < 5.51.5 | 5.51.5 |