CVE-2026-27121

Katalog CVE

CVSS 5.4 · Medium EPSS 0,22%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada svelte. Skor CVSS 3.1 5.4 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

20 Februari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

5.4 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

EPSS (30 hari)

0,22% peluang dieksploitasi; lebih tinggi dari 12,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/sveltejs/svelte/security/advisories/GHSA-f7gr-6p89-r883 advisory vendor