CVE-2021-3163: slab quill

csirt@kutim:~/threat-intel/cve/CVE-2021-3163

CVSS 6.1 · Medium EPSS 1,3%

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

Deskripsi (NVD)

A vulnerability in the HTML editor of Slab Quill 4.8.0 allows an attacker to execute arbitrary JavaScript by storing an XSS payload (a crafted onloadstart attribute of an IMG element) in a text field. Note: Researchers have claimed that this issue is not within the product itself, but is intended behavior in a web browser

Rincian

Terbit di NVD: 12 April 2021
Terakhir diubah: 17 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): 1,3% peluang dieksploitasi; lebih tinggi dari 69,9% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
slab	quill	Versi 4.8.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://burninatorsec.blogspot.com/2021/04/cve-2021-3163-xss-slab-quill-js.html exploit · advisory pihak ketiga
https://github.com/quilljs/quill/issues/3273 broken link · issue tracking · advisory pihak ketiga
https://github.com/quilljs/quill/issues/3364 exploit · issue tracking · advisory pihak ketiga
https://quilljs.com product

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.