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CVE-2026-34497

FMS Employee Vulnerable to HTML Injection

MEDIUM
5.4
CVSS Score
Published: July 31, 2026 at 05:31 PM UTC
Updated: October 23, 2026 at 11:10 PM UTC
1 product affected across 1 vendorFms Employee

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Fms Employee· Johnsoncontrols
95%
v ≤ 2025.3.1
Affected range stops below 2025.3.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-80

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