What is the CVSS score of CVE-2019-16149?

CVE-2019-16149 has a CVSS 3.1 base score of 5.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L. EPSS exploitation probability: 0.1%.

Which versions of Forticlientems are affected by CVE-2019-16149?

Organizations using FortiClientEMS should be aware of moderate risk from CVE-2019-16149, a cross-site scripting vulnerability rated CVSS 5.5.

How to fix or mitigate CVE-2019-16149?

Within 30 days: Identify affected systems running FortiClientEMS and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Forticlientems CVE-2019-16149

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2025-03-28 psirt@fortinet.com

XSS Fortinet Forticlientems

5.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.5 MEDIUM

AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:33 vuln.today

CVE Published

Mar 28, 2025 - 10:15 nvd

MEDIUM 5.5

DescriptionCVE.org

An Improper Neutralization of Input During Web Page Generation in FortiClientEMS version 6.2.0 may allow a remote attacker to execute unauthorized code by injecting malicious payload in the user profile of a FortiClient instance being managed by the vulnerable system.

AnalysisAI

An Improper Neutralization of Input During Web Page Generation in FortiClientEMS version 6.2.0 may allow a remote attacker to execute unauthorized code by injecting malicious payload in the user. Rated medium severity (CVSS 5.5), this vulnerability is remotely exploitable. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. An Improper Neutralization of Input During Web Page Generation in FortiClientEMS version 6.2.0 may allow a remote attacker to execute unauthorized code by injecting malicious payload in the user profile of a FortiClient instance being managed by the vulnerable system. Affected products include: Fortinet Forticlientems. Version information: version 6.2.0.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.