XSS in VMware Horizon

CVE-2020-3997

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.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-3997: held from 0.007 to 0.007.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

  • VMware Horizon
  • VMware Horizon Server — versions VMware Horizon Server (7.x prior to 7.10.3 or 7.13.0)

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-3997?
CVE-2020-3997 is a medium-severity vulnerability in VMware Horizon, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-10-23.
How severe is CVE-2020-3997?
Medium severity. CVSS v3 base score is 5.4 out of 10.