What is CVE-2023-20868?

CVE-2023-20868 is a medium-severity vulnerability in Broadcom VMware Nsx-T Data Center, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-05-26.

How severe is CVE-2023-20868?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Broadcom VMware Nsx-T Data Center

CVE-2023-20868

NSX-T contains a reflected cross-site scripting vulnerability due to a lack of input validation. A remote attacker can inject HTML or JavaScript to redirect to malicious pages.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-05-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (38.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Broadcom VMware Nsx-T Data Center
Nsx-T — versions NSX-T 3.2.x VCF 4.5.x

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.vmware.com/security/advisories/VMSA-2023-0010.html (Vendor Advisory)

Frequently asked questions

What is CVE-2023-20868?: CVE-2023-20868 is a medium-severity vulnerability in Broadcom VMware Nsx-T Data Center, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-05-26.
How severe is CVE-2023-20868?: Medium severity. CVSS v3 base score is 6.1 out of 10.