What’s Vulnerable › Vulnerabilities

CVE-2021-22016

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-09-23 · updated 2026-06-17
• Weakness: CWE-79

Description

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.

Affected products

• VMware Cloud Foundation: from 3.0 before 5.0 — fixed in 5.0
• VMware vCenter Server: 6.7
• VMware vCenter Server, VMware Cloud Foundation: VMware vCenter Server 6.7 before 6.7 U3o and VMware Cloud Foundation 3.x before 3.10.2.2

How to fix

Upgrade to a fixed version: VMware Cloud Foundation 5.0. Check the vendor advisory for mitigations.

References

• https://www.vmware.com/security/advisories/VMSA-2021-0020.html
• https://www.vmware.com/security/advisories/VMSA-2021-0020.html

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