CVE-2016-20034: Wowza Streaming Engine 4.5.0 Privilege Escalation via user edit

Published Mar 15, 2026
·
Updated

Wowza Streaming Engine 4.5.0 contains a privilege escalation vulnerability that allows authenticated read-only users to elevate privileges to administrator by manipulating POST parameters. Attackers can send POST requests to the user edit endpoint with accessLevel set to 'admin' and advUser parameters set to 'true' and 'on' to gain administrative access.

Affected Software

2 affected components
Wowza Media Systems Wowza Streaming Engine
Wowza Streaming Engine=4.5.0

Event History

Mar 15, 2026
CVE Published
via MITRE·06:34 PM
Data Sourced
via MITRE·06:34 PM
DescriptionSeverityWeakness
Mar 16, 2026
Data Sourced
via NVD·02:17 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2016-20034?

CVE-2016-20034 is classified as a privilege escalation vulnerability.

2

How do I fix CVE-2016-20034?

To fix CVE-2016-20034, upgrade Wowza Streaming Engine to the latest version provided by Wowza Media Systems.

3

Who is affected by CVE-2016-20034?

Authenticated read-only users of Wowza Streaming Engine 4.5.0 can be affected by CVE-2016-20034.

4

What allows the exploitation of CVE-2016-20034?

The exploitation of CVE-2016-20034 is enabled by manipulating POST parameters in the user edit functionality.

5

What can attackers achieve by exploiting CVE-2016-20034?

Attackers can elevate their privileges from read-only to administrator by exploiting CVE-2016-20034.

Contact

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