Cyber Resilience

CVE-2021-40096

Medium

Published: 07 December 2021

Published
07 December 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.0030 54.0th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-40096 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Squaredup Squaredup. Its CVSS base score is 5.4 (Medium).

Operationally, ranked in the top 46.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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.

CWE(s)
CWE-79

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

squaredup
squaredup
≤ 5.3.1 · ≤ 5.3.1 · ≤ 5.3.1

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

SI-10 Information Input Validation
addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

SI-15 Information Output Filtering
addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References