# CVE-2019-6697: Cross-site scripting in FortiOS

> An unauthenticated attacker on the same network can inject malicious scripts via crafted DHCP packets, leading to stored XSS on the FortiGate management interface.

- **Severity:** Medium 5.2 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:F/RL:X/RC:X`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 Mar 2025
- **Updated:** 17 Mar 2025
- **Also known as:** GHSA-fwm7-53g9-cmxr

## What is CVE-2019-6697?

CVE-2019-6697 is a medium-severity cross-site scripting vulnerability in Fortinet Fortios, published on 17 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An Improper Neutralization of Input vulnerability affecting FortiGate version 6.2.0 through 6.2.1, 6.0.0 through 6.0.6 in the hostname parameter of a DHCP packet under DHCP monitor page may allow an unauthenticated attacker in the same network as the FortiGate to perform a Stored Cross Site Scripting attack (XSS) by sending a crafted DHCP packet.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2019-6697?

It affects 1 product.


Products: Fortinet Fortios.

## How do I fix CVE-2019-6697?

No fix has been published for CVE-2019-6697 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-6697 being exploited?

There is no known exploitation of CVE-2019-6697 in the wild and no public exploit code.

## Other vulnerabilities in Fortinet Fortios

- [CVE-2024-23113](https://insights.sbomify.com/CVE-2024-23113/): Fortinet Multiple Products Format String (critical 9.8, exploited in the wild)
- [CVE-2022-40684](https://insights.sbomify.com/CVE-2022-40684/): Fortinet Multiple Products Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2024-55591](https://insights.sbomify.com/CVE-2024-55591/): Fortinet FortiOS and FortiProxy Authentication Bypass (critical 9.6, exploited in the wild)
- [CVE-2024-21762](https://insights.sbomify.com/CVE-2024-21762/): Fortinet FortiOS Out-of-Bound Write (critical 9.6, exploited in the wild)
- [CVE-2022-42475](https://insights.sbomify.com/CVE-2022-42475/): Fortinet FortiOS Heap-Based Buffer Overflow (critical 9.3, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-6697 and fix it if it is affected.

What it is: CVE-2019-6697 is a medium-severity cross-site scripting vulnerability in Fortinet Fortios, published on 17 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-6697 in the wild and no public exploit code.

Affected product: Fortinet Fortios. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2019-6697/ (Markdown: https://insights.sbomify.com/CVE-2019-6697/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-6697
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-6697
- OSV: https://osv.dev/vulnerability/CVE-2019-6697

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-6697/
Summaries are generated and may contain mistakes; the official description above is the record.