csirt@kutim:~/threat-intel/cve/CVE-2021-36563

Katalog CVE

CVSS 5.4 · Medium EPSS 1,7%

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

Deskripsi (NVD)

The CheckMK management web console (versions 1.5.0 to 2.0.0) does not sanitise user input in various parameters of the WATO module. This allows an attacker to open a backdoor on the device with HTML content and interpreted by the browser (such as JavaScript or other client-side scripts), the XSS payload will be triggered when the user accesses some specific sections of the application. In the same sense a very dangerous potential way would be when an attacker who has the monitor role (not administrator) manages to get a stored XSS to steal the secretAutomation (for the use of the API in administrator mode) and thus be able to create another administrator user who has high privileges on the CheckMK monitoring web console. Another way is that persistent XSS allows an attacker to modify the displayed content or change the victim's information. Successful exploitation requires access to the web management interface, either with valid credentials or with a hijacked session.

Rincian

Terbit di NVD
26 Juli 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)
1,7% peluang dieksploitasi; lebih tinggi dari 76,8% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
checkmk checkmk Versi 1.5.0 hingga 2.0.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

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.