CVE-2017-4940

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: 2017-12-20 · updated 2026-06-17
Weakness: CWE-79

Description

The ESXi Host Client in VMware ESXi (6.5 before ESXi650-201712103-SG, 5.5 before ESXi600-201711103-SG and 5.5 before ESXi550-201709102-SG) contains a vulnerability that may allow for stored cross-site scripting (XSS). An attacker can exploit this vulnerability by injecting Javascript, which might get executed when other users access the Host Client.

Affected products

VMware ESXi: 5.5, 5.5-1, 5.5-2, 5.5-3a, 5.5-3b, 5.5-550-20170901001s (+114)

References

http://www.securitytracker.com/id/1040024
https://www.vmware.com/security/advisories/VMSA-2017-0021.html
http://www.securitytracker.com/id/1040024
https://www.vmware.com/security/advisories/VMSA-2017-0021.html

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