CVE-2021-38157: leostream connection broker

csirt@kutim:~/threat-intel/cve/CVE-2021-38157

CVSS 6.1 · Medium EPSS 1,1%

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

Deskripsi (NVD)

LeoStream Connection Broker 9.x before 9.0.34.3 allows Unauthenticated Reflected XSS via the /index.pl user parameter. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Rincian

Terbit di NVD: 6 Agustus 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): 1,1% peluang dieksploitasi; lebih tinggi dari 65,2% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
leostream	connection broker	Versi 9.0.3 hingga sebelum 9.0.34.3

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://leostream.com advisory vendor
https://www.leostream.com/resources-2/product-lifecycle/ advisory vendor
https://dgccpa.com advisory pihak ketiga
https://gist.github.com/erud1te-sec/5c85924cb78ba85af42e0b7b62a5ec91 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.