Stored cross-site scripting in VMware ESXi - CVE-2020-3955

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Main Vulnerability Database Vulnerabilities #VU27431

Stored cross-site scripting in VMware ESXi - CVE-2020-3955

Published: April 29, 2020


Vulnerability identifier: #VU27431
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2020-3955
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in ESXi Host Client. A remote attacker can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


Affected software

VMware ESXi
PowerFlex rack
Dell EMC VxRail Appliance

How to mitigate CVE-2020-3955

Install updates from vendor's website.

VMware ESXi - addressed in versions ESXi650-201912104-SG, ESXi670-202004103-SG
PowerFlex rack - addressed in versions 3.3.8.0, 3.4.3.0, 3.5.3.1
Dell EMC VxRail Appliance - addressed in versions 4.5.420, 4.7.510

External References

Related Security Bulletins