CVE-2021-42080 HIGH

CVE-2021-42080: Reflected XSS vulnerability in OSNEXUS QuantaStor before 6.0.0.355

Vendor Osnexus
Product QuantaStor
Weakness CWE-79 · XSS
Published July 10, 2023
Last update September 22, 2025
View on NVD All CVEs

CVSS base score

7.4/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

What the vulnerability does

01Description

An attacker is able to launch a Reflected XSS attack using a crafted URL. POC: Visit the following URL https://<IPADDRESS>:8153/qstorapi/echo?inputMessage=<img%20src=x%20onerror=alert(document.cookie)>

Key dates

02Disclosure timeline

July 10, 2023 CVE published
September 22, 2025 Record updated