CVE-2021-1271: cisco web security virtual appliance

csirt@kutim:~/threat-intel/cve/CVE-2021-1271

CVSS 4.8 · Medium EPSS 0,79%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada cisco web security virtual appliance. Skor CVSS 3.1 4.8 (Medium) menurut NVD.

Deskripsi (NVD)

A vulnerability in the web-based management interface of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface of an affected device. The vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by inserting malicious data into a specific data field in an affected interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface.

Rincian

Terbit di NVD: 20 Januari 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 4.8 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:H/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): 0,79% peluang dieksploitasi; lebih tinggi dari 54,9% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
cisco	web security virtual appliance	Semua versi sebelum 12.5.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wsa-xss-RuB5WGqL advisory vendor

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.