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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Wowza Media Systems, LLC. Wowza Streaming Engine affected
Version Status Constraints
4.5.0 affected
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Project Subscriptions

Vendors Products
Wowza Subscribe
Streaming Engine Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5340.php cve-icon
https://www.exploit-db.com/exploits/40133 cve-icon
https://www.vulncheck.com/advisories/wowza-streaming-engine-privilege-escalation-via-user-edit cve-icon
History

Sun, 15 Mar 2026 19:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Wowza Streaming Engine 4.5.0 Privilege Escalation via user edit
First Time appeared Wowza
Wowza streaming Engine
Weaknesses CWE-352
CPEs cpe:2.3:a:wowza:streaming_engine:4.5.0:*:*:*:*:*:*:*
Vendors & Products Wowza
Wowza streaming Engine
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-03-15T18:34:22.034Z

Reserved: 2026-03-15T18:22:05.054Z

Link: CVE-2016-20034

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses