ForticlientemsApplication · Fortinet
CVE-2019-16149
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThis is a stored Cross-Site Scripting (XSS) vulnerability in FortiClientEMS 6.2.0. An attacker with the ability to manipulate the user profile of a FortiClient instance managed by the EMS can inject malicious JavaScript payloads. When administrators or other users view the affected profile through the EMS management interface, the payload executes in their browsers, potentially allowing session hijacking or unauthorized actions.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
ForticlientemsApplication
< 6.2.1CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify FortiClientEMS versionLocate the FortiClientEMS installation and check the version information, typically found in the application properties, about page, or installer detailsAffected if The installed version is 6.2.0 or any version lower than 6.2.1
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Confirm EMS management interface is accessibleVerify that the FortiClientEMS web console is reachable and accessible on the networkAffected if The EMS management interface is exposed to users who can view endpoint profiles
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Inspect managed endpoint profiles for script contentAccess the EMS console and review the endpoint user profile fields (such as username, display name, or custom fields) for any unexpected or encoded characters that may indicate injected script tagsAffected if Any managed endpoint profile contains HTML or JavaScript tags in user-controllable fields that are not sanitized before display
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Review EMS logs for XSS-related errorsExamine the FortiClientEMS logs for entries containing script tags, javascript: URIs, or error patterns related to profile renderingAffected if Logs show attempted XSS payloads in profile-related operations
You are affected if FortiClientEMS version is below 6.2.1 and the EMS management interface can be accessed by users who can manipulate or view endpoint profiles.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped6.2.1
Upgrade FortiClientEMS to the latest version containing the security patch. Until then, restrict administrative access to the EMS and validate/sanitize all user-supplied profile data before rendering.
FortiClientEMS 6.2.1
- 1. Download FortiClientEMS version 6.2.1 or later from the Fortinet support portal
- 2. Back up the current FortiClientEMS configuration
- 3. Stop the FortiClientEMS service
- 4. Install the FortiClientEMS 6.2.1 upgrade
- 5. Start the FortiClientEMS service
- 6. Verify the upgrade was successful by checking the EMS version in the administration console
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Forticlientems
Scoped from the published advisory
- Consultation3.0 h
- Implementation4.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,648.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-16149 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2019-16149 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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