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OpenAdvisories
High · 8.7 CVE-2021-42083 EUVD-2021-29069GHSA-9c8q-55w7-h67h

Authenticated Stored XSS in OSNEXUS QuantaStor 6.0.0.335

Published Jul 10, 2023 · Updated Sep 22, 2025 · Assigned by DIVD

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.

Affected products

VendorProductAffectedFixed
OSNEXUS QuantaStor < 6.0.0.355 6.0.0.355

References