CVE-2021-40096

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-12-07 · updated 2026-06-17
Weakness: CWE-79

Description

A cross-site scripting (XSS) vulnerability in integration configuration in SquaredUp for SCOM 5.2.1.6654 allows remote attackers to inject arbitrary web script or HTML via modification of the authorisationUrl in some integration configurations.

Affected products

Squaredup: before 5.3.1 — fixed in 5.3.1

How to fix

Upgrade to a fixed version: Squaredup 5.3.1. Check the vendor advisory for mitigations.

References

https://support.squaredup.com
https://support.squaredup.com/hc/en-us/articles/4410656396817-CVE-2021-40096-Stored-cross-site-scripting-provider-configuration-
https://support.squaredup.com
https://support.squaredup.com/hc/en-us/articles/4410656396817-CVE-2021-40096-Stored-cross-site-scripting-provider-configuration-

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