EUVD-2026-65005
GHSA-2fj7-6j2c-3972
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/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
Network-accessible web XSS; PR:L because attacker must be authenticated; UI:R and S:C for browser-context execution; C:L/I:L for session/DOM impact only.
Primary rating from Vendor (jci).
CVSS VectorVendor: jci
Lifecycle Timeline
2DescriptionCVE.org
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Johnson Controls Metasys 14 and Johnson Controls Metasys 15 allows Cross Site Scripting.
This issue affects Metasys 14: before 14.1.5; Metasys 15: before 15.0.1.
AnalysisAI
Reflected or stored cross-site scripting in Johnson Controls Metasys 14 (before 14.1.5) and Metasys 15 (before 15.0.1) allows a low-privileged attacker to inject malicious scripts into web pages that execute in a victim user's browser. Metasys is a building automation and management system, meaning successful exploitation could enable session hijacking or unauthorized interaction with building infrastructure controls accessible through the web interface. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to hold a valid, low-privileged authenticated session on the Johnson Controls Metasys web interface (PR:L from CVSS 4.0 vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The NVD CVSS score of 6.1 and the CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:P) suggest moderate exploitability with a meaningful but conditional threat profile. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade Johnson Controls Metasys 14 to version 14.1.5 or later, and Metasys 15 to version 15.0.1 or later, as confirmed by the vendor advisory at https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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