# CVE-2016-6365: Cross-site scripting in n/a

> Remote attackers can inject arbitrary web script or HTML into Cisco Firepower Management Center, potentially compromising user sessions or 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:** 23 Aug 2016
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-xr4r-mvww-q76g

## What is CVE-2016-6365?

CVE-2016-6365 is a medium-severity cross-site scripting vulnerability in Cisco Secure Firewall Management Center, published on 23 Aug 2016. 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

Cross-site scripting (XSS) vulnerability in Cisco Firepower Management Center 4.10.3, 5.2.0, 5.3.0, 5.3.0.2, 5.3.1, and 5.4.0 allows remote attackers to inject arbitrary web script or HTML via unspecified parameters, aka Bug IDs CSCur25508 and CSCur25518.

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

## Which versions are affected by CVE-2016-6365?

It affects 1 product.


Products: Cisco Secure Firewall Management Center.

## How do I fix CVE-2016-6365?

No fix has been published for CVE-2016-6365 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-6365 being exploited?

There is no known exploitation of CVE-2016-6365 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Secure Firewall Management Center

- [CVE-2026-20079](https://insights.sbomify.com/CVE-2026-20079/): Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel (critical 10.0, exploited in the wild)
- [CVE-2026-20131](https://insights.sbomify.com/CVE-2026-20131/): Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management Deserialization of Untrusted Data (critical 10.0, exploited in the wild)
- [CVE-2026-20316](https://insights.sbomify.com/CVE-2026-20316/): Cisco Secure Firewall Management Center Use of Hard-coded Password (medium 5.3, exploited in the wild)
- [CVE-2025-20265](https://insights.sbomify.com/CVE-2025-20265/): Cisco Secure Firewall Management Center Software Radius Remote Code Execution Vulnerability (critical 10.0)
- [CVE-2024-20424](https://insights.sbomify.com/CVE-2024-20424/): Command injection in Cisco Firepower Management Center (critical 9.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-6365 and fix it if it is affected.

What it is: CVE-2016-6365 is a medium-severity cross-site scripting vulnerability in Cisco Secure Firewall Management Center, published on 23 Aug 2016. 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-2016-6365 in the wild and no public exploit code.

Affected product: Cisco Secure Firewall Management Center. 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-2016-6365/ (Markdown: https://insights.sbomify.com/CVE-2016-6365/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-6365
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-6365
- OSV: https://osv.dev/vulnerability/CVE-2016-6365

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From sbomify Insights: https://insights.sbomify.com/CVE-2016-6365/
Summaries are generated and may contain mistakes; the official description above is the record.