CVE-2020-3997: VMware Horizon

Medium severity, CVSS 5.4. EPSS: 0.7% chance of exploitation in the next 30 days.

VMware Horizon Server (7.x prior to 7.10.3 or 7.13.0) contains a Cross Site Scripting (XSS) vulnerability. Successful exploitation of this issue may allow an attacker to inject malicious script which will be executed.

Affected products

• VMware Horizon: from 7.0, before 7.10.3 (fixed in 7.10.3); from 7.11.0, before 7.13.0 (fixed in 7.13.0)

Published 2020-10-23. Last modified 2026-06-17.