CVE-2026-66010: cure53 dompurify

csirt@kutim:~/threat-intel/cve/CVE-2026-66010

CVSS 6.1 · Medium EPSS 0,31%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada cure53 dompurify. Skor CVSS 3.1 6.1 (Medium) menurut vulncheck.com.

Deskripsi (NVD)

DOMPurify before 3.4.12 fails to execute afterSanitizeElements hook for custom elements allowed via CUSTOM_ELEMENT_HANDLING.tagNameCheck, allowing attributes to bypass application security policies. Attackers can preserve sensitive attributes on custom elements that later re-inject them into innerHTML sinks, creating second-order XSS gadgets.

Rincian

Terbit di NVD: 24 Juli 2026
Terakhir diubah: 6 Agustus 2026
Status NVD: Analyzed
CVSS 3.1: 6.1 (Medium), sumber vulncheck.com
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): 0,31% peluang dieksploitasi; lebih tinggi dari 21,5% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
cure53	dompurify	Semua versi sebelum 3.4.12

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/cure53/DOMPurify/security/advisories/GHSA-c2j3-45gr-mqc4 exploit · advisory vendor
https://www.vulncheck.com/advisories/dompurify-before-hook-bypass-via-custom-element-handling advisory pihak ketiga

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.