CVE-2026-54298

Katalog CVE

CVSS 6.1 · Medium EPSS 0,23%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada astro. Skor CVSS 3.1 6.1 (Medium) menurut NVD.

Deskripsi (NVD)

Astro is a web framework. Prior to 6.4.6, the spreadAttributes function in Astro's server-side rendering pipeline iterates over object keys and passes them directly to addAttribute, which interpolates the key into the HTML output without escaping. When a developer uses the spread syntax {...props} on an HTML element and the object keys come from an untrusted source (API, CMS, URL parameters), an attacker can inject arbitrary HTML attributes including event handlers like onmousemove, onclick, or break out of the attribute context entirely to inject new elements. This vulnerability is fixed in 6.4.6.

Rincian

Terbit di NVD

22 Juni 2026

Terakhir diubah

23 Juni 2026

Status NVD

Modified

CVSS 3.1

6.1 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/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)

0,23% peluang dieksploitasi; lebih tinggi dari 12,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/withastro/astro/security/advisories/GHSA-jrpj-wcv7-9fh9 exploit · advisory vendor