# CVE-2016-20036: Wowza Streaming Engine 4.5.0 Multiple Cross-Site Scripting Vulnerabilities

> Attackers can inject malicious scripts into the Wowza Streaming Engine manager interface, executing arbitrary JavaScript in user browsers.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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:** 15 Mar 2026
- **Updated:** 24 May 2026
- **Also known as:** GHSA-fmwm-m6m7-5w28

## What is CVE-2016-20036?

CVE-2016-20036 is a medium-severity cross-site scripting vulnerability in Wowza Streaming Engine, published on 15 Mar 2026. 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

Wowza Streaming Engine 4.5.0 contains multiple reflected cross-site scripting vulnerabilities in the enginemanager interface where input passed through various parameters is not properly sanitized before being returned to users. Attackers can inject malicious script code through parameters like appName, vhost, uiAppType, and wowzaCloudDestinationType in multiple endpoints to execute arbitrary HTML and JavaScript in a user's browser session.

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

## Which versions are affected by CVE-2016-20036?

It affects 1 product.


Products: Wowza Streaming Engine.

## How do I fix CVE-2016-20036?

No fix has been published for CVE-2016-20036 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-20036 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-20036 exists.

## Other vulnerabilities in Wowza Streaming Engine

- [CVE-2018-7047](https://insights.sbomify.com/CVE-2018-7047/): Hardcoded credentials in n/a (critical 9.8)
- [CVE-2024-52052](https://insights.sbomify.com/CVE-2024-52052/): Stream Target Remote Code Execution in Wowza Streaming Engine (critical 9.4)
- [CVE-2018-19365](https://insights.sbomify.com/CVE-2018-19365/): Path traversal in n/a (critical 9.1)
- [CVE-2020-9004](https://insights.sbomify.com/CVE-2020-9004/): Auth bypass in n/a (high 8.8)
- [CVE-2016-20034](https://insights.sbomify.com/CVE-2016-20034/): Wowza Streaming Engine 4.5.0 Privilege Escalation via user edit (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-20036 and fix it if it is affected.

What it is: CVE-2016-20036 is a medium-severity cross-site scripting vulnerability in Wowza Streaming Engine, published on 15 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-20036 exists.

Affected product: Wowza Streaming Engine. 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-2016-20036/ (Markdown: https://insights.sbomify.com/CVE-2016-20036/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-20036
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-20036
- OSV: https://osv.dev/vulnerability/CVE-2016-20036

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From sbomify Insights: https://insights.sbomify.com/CVE-2016-20036/
Summaries are generated and may contain mistakes; the official description above is the record.