Cyber Resilience

CVE-2021-22016

Medium

Published: 23 September 2021

Published
23 September 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.0123 79.6th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-22016 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Vmware Cloud Foundation. Its CVSS base score is 6.1 (Medium).

Operationally, ranked in the top 20.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

The vCenter Server contains a reflected cross-site scripting vulnerability due to a lack of input sanitization. An attacker may exploit this issue to execute malicious scripts by tricking a victim into clicking a malicious link.

CWE(s)

Related Threats

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

Affected Assets

vmware
cloud foundation
3.0 — 5.0
vmware
vcenter server
6.7

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.

addresses: CWE-79

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

addresses: CWE-79

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

addresses: CWE-79

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

References