CVE-2021-21973

State: Published
Severity: 5.3 Medium
Published: Feb 24, 2021
Updated: Oct 21, 2025
Reserved: Jan 4, 2021

Description

The vSphere Client (HTML5) contains an SSRF (Server Side Request Forgery) vulnerability due to improper validation of URLs in a vCenter Server plugin. A malicious actor with network access to port 443 may exploit this issue by sending a POST request to vCenter Server plugin leading to information disclosure. This affects: VMware vCenter Server (7.x before 7.0 U1c, 6.7 before 6.7 U3l and 6.5 before 6.5 U3n) and VMware Cloud Foundation (4.x before 4.2 and 3.x before 3.10.1.2).

Scores

CVSS	Score	Vector	Source
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	CISA-ADP

Weaknesses

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
VMware vCenter Servern/a	7.x before 7.0 U1cAffected 6.7 before 6.7 U3lAffected 6.5 before 6.5 U3nAffected
VMware Cloud Foundationn/a	4.x before 4.2Affected 3.x before 3.10.1.2Affected

References

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