XSS in Fortinet Forticlientems

CVE-2019-16149

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.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.003 (20.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2019-16149: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-16149?
CVE-2019-16149 is a medium-severity vulnerability in Fortinet Forticlientems, classified under Cross-site Scripting. CVSS score: 5.5/10. Published 2025-03-28.
How severe is CVE-2019-16149?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2019-16149 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.