CVE-2026-27121
CVE-2026-27121 · Svelte affected by cross-site scripting via spread attributes in Svelte SSR
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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.
CVSS 5.1 · Средний · EPSS 0,2% · Есть исправление
- Опубликовано
- Обновлено
Стек: node