Cross-site Scripting (XSS)

Overview svelte is a package for building web applications. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the svelte:element tags. An attacker can inject arbitrary HTML into the server-side rendered output by supplying a crafted tag name. Details Cross-site...

EUVD-2026-2733

An SSR XSS exists in async hydration when attacker‑controlled keys are passed to hydratable. The key is embedded inside a block without HTML‑safe escaping, allowing to terminate the script and inject arbitrary JavaScript. This enables remote script execution in users' browsers, with potential for...

PT-2026-3102

An SSR XSS exists in async hydration when attacker‑controlled keys are passed to hydratable. The key is embedded inside a block without HTML‑safe escaping, allowing to terminate the script and inject arbitrary JavaScript. This enables remote script execution in users' browsers, with potential for...

Svelte 安全漏洞

Svelte is a new way to build web applications open-sourced by Svelte. A security vulnerability exists in versions of Svelte prior to 5.3.2 that stems from not properly checking input object properties, which could lead to prototype contamination...