# CVE-2017-14190: Cross-site scripting in FortiOS

> Attackers can inject arbitrary web script via malicious Host headers in FortiOS, potentially compromising user sessions and data.

- **Severity:** Medium 6.1 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 29 Jan 2018
- **Updated:** 25 Oct 2024
- **Also known as:** GHSA-232m-xvr4-2347

## What is CVE-2017-14190?

CVE-2017-14190 is a medium-severity cross-site scripting vulnerability in Fortinet Fortios, published on 29 Jan 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A Cross-site Scripting vulnerability in Fortinet FortiOS 5.6.0 to 5.6.2, 5.4.0 to 5.4.7, 5.2 and earlier, allows attacker to inject arbitrary web script or HTML via maliciously crafted "Host" header in user HTTP requests.

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

## Which versions are affected by CVE-2017-14190?

It affects 1 product.


Products: Fortinet Fortios.

## How do I fix CVE-2017-14190?

No fix has been published for CVE-2017-14190 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-14190 being exploited?

There is no known exploitation of CVE-2017-14190 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-2017-14190 and fix it if it is affected.

What it is: CVE-2017-14190 is a medium-severity cross-site scripting vulnerability in Fortinet Fortios, published on 29 Jan 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2017-14190 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-2017-14190/ (Markdown: https://insights.sbomify.com/CVE-2017-14190/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-14190
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-14190
- OSV: https://osv.dev/vulnerability/CVE-2017-14190

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-14190/
Summaries are generated and may contain mistakes; the official description above is the record.