CVE-2021-42080

  1. Yack CVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-42080

7.4 /10

CVSS v3 : HIGH

V3 Legend

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

A

n 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)>

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)>

21 Nov 2024, 06:27

Type Values Removed Values Added
References
  • () https://www.divd.nl/DIVD-2021-00020 -
References () https://csirt.divd.nl/CVE-2021-42080 - Third Party Advisory () https://csirt.divd.nl/CVE-2021-42080 - Third Party Advisory
References () https://www.osnexus.com/products/software-defined-storage - Product () https://www.osnexus.com/products/software-defined-storage - Product
References () https://www.wbsec.nl/osnexus - Third Party Advisory () https://www.wbsec.nl/osnexus - Third Party Advisory

16 Oct 2024, 12:15

Type Values Removed Values Added
References
  • {'url': 'https://www.divd.nl/DIVD-2021-00020', 'tags': ['Broken Link'], 'source': '[email protected]'}
  • () https://csirt.divd.nl/DIVD-2021-00020/ -

13 Sep 2024, 18:15

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 6.1 		v2 : unknown
v3 : 7.4
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

CWE
CWE-79

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