CVE-2026-34497
FMS Employee Vulnerable to HTML Injection
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
FMS Employee Vulnerable to HTML Injection
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.
- Record
CVE-2026-34497- CVSS 4.0
- 4.8 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-80
- Updated
- 2026-11-02
EUVDEUVD-2026-51590
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.
- Record
EUVD-2026-51590- CVSS 4.0
- 4.8 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-9hxq-5m48-2w2f
Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in...
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.
- Record
GHSA-9hxq-5m48-2w2f- CVSS 4.0
- 4.8 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-80
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-34497- CVSS 4.0
- 4.8 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-80
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-34497 is a medium vulnerability (CVSS 4.8) in Johnson Controls Fm Systems Employee, published July 31, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.23%, the 14th percentile. No source names a fixed version.