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CVE-2021-4406

CRITICAL
Published 2023-07-10T06:29:48.698Z
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CVSS Score

V3.1
9.1
/10
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.160
Higher than 16.0% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Description

An authenticated attacker is able to create alerts that trigger a stored XSS attack.

POC

* go to the alert manager

* open the ITSM tab
* add a webhook with the URL/service token value

' -h && id | tee /tmp/ttttttddddssss #' (whitespaces are tab characters)

* click add

* click apply

* create a test alert

* The test alert will run the command

“id | tee /tmp/ttttttddddssss” as root.

* after the test alert inspect

/tmp/ttttttddddssss it'll contain the ids of the root user.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

OSNEXUS

QuantaStor

Affected Versions:

0

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-2xf9-j9jw-g7f7

Advisory Details

An administrator is able to execute commands as root via the alerts management dialog

CVSS Scoring

CVSS Score

7.5

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-4406
WEB https://csirt.divd.nl/CVE-2021-4406
WEB https://csirt.divd.nl/DIVD-2021-00020
WEB https://csirt.divd.nl/cves/CVE-2021-4406
WEB https://www.divd.nl/DIVD-2021-00020
WEB https://www.osnexus.com/products/software-defined-storage

Advisory provided by GitHub Security Advisory Database. Published: July 10, 2023, Modified: September 24, 2025

References

https://csirt.divd.nl/DIVD-2021-00020/
https://www.osnexus.com/products/software-defined-storage
https://csirt.divd.nl/CVE-2021-4406
Published: 2023-07-10T06:29:48.698Z
Last Modified: 2025-09-24T13:40:46.757Z
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