What is CVE-2026-34497?

CVE-2026-34497 is a medium-severity vulnerability in Johnson Controls Fm Systems Employee, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 5.4/10. Published 2026-07-31.

How severe is CVE-2026-34497?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Johnson Controls Fm Systems Employee

CVE-2026-34497

Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in Johnson Controls FM Systems Employee allows Cross-Site Scripting (XSS). This issue affects FM Systems Employee: before 2025.3.1.

EPSS: 0.001 (3.5th percentile) — read the EPSS interpretation.

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.

Affected products

Johnson Controls Fm Systems Employee — versions 0
Johnsoncontrols Fms_employee

Weakness classification (CWE)

CWE-80 — Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

References

productsecurity@jci.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-34497?: CVE-2026-34497 is a medium-severity vulnerability in Johnson Controls Fm Systems Employee, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 5.4/10. Published 2026-07-31.
How severe is CVE-2026-34497?: Medium severity. CVSS v3 base score is 5.4 out of 10.