CVE-2021-43991: kentico xperience

csirt@kutim:~/threat-intel/cve/CVE-2021-43991

CVSS 5.4 · Medium EPSS 0,56%

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

Deskripsi (NVD)

The Kentico Xperience CMS version 13.0 – 13.0.43 is vulnerable to a persistent Cross-Site Scripting (XSS) vulnerability (also known as Stored or Second-Order XSS). Persistent XSS vulnerabilities occur when the application stores and retrieves client supplied data without proper handling of dangerous content. This type of XSS vulnerability is exploited by submitting malicious script content to the application which is then retrieved and executed by other application users. The attacker could exploit this to conduct a range of attacks against users of the affected application such as session hijacking, account take over and accessing sensitive data.

Rincian

Terbit di NVD: 3 Desember 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
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): 0,56% peluang dieksploitasi; lebih tinggi dari 45,2% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
kentico	xperience	Versi 13.0.0 hingga 13.0.43

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://appcheck-ng.com/persistent-xss-kentico-cms/ exploit · advisory pihak ketiga

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.