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

Quick assessment

Affected
Wowza Media Systems, LLC. Wowza Streaming Engine
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Wowza Media Systems Wowza Streaming Engine是美国Wowza Media Systems公司的一个强大的、可定制的和可扩展的媒体服务器软件。用于将高质量视频和音频可靠地流式传输到任何地方的任何设备。 Wowza Media Systems Wowza Streaming Engine 4.5.0版本存在跨站请求伪造漏洞，该漏洞源于对POST参数操作不当，可能导致经过身份验证的只读用户提升至管理员权限。

CVSS 8.8 · High EPSS 0.21% · P10
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I. Basic Information for CVE-2016-20034

Vulnerability Information
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Vulnerability Title
Wowza Streaming Engine 4.5.0 Privilege Escalation via user edit
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Wowza Media Systems Wowza Streaming Engine 跨站请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wowza Media Systems Wowza Streaming Engine是美国Wowza Media Systems公司的一个强大的、可定制的和可扩展的媒体服务器软件。用于将高质量视频和音频可靠地流式传输到任何地方的任何设备。 Wowza Media Systems Wowza Streaming Engine 4.5.0版本存在跨站请求伪造漏洞，该漏洞源于对POST参数操作不当，可能导致经过身份验证的只读用户提升至管理员权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Wowza Media Systems, LLC. Wowza Streaming Engine 4.5.0 -

II. Public POCs for CVE-2016-20034

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III. Intelligence Information for CVE-2016-20034

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Vendor Advisories for CVE-2016-20034 (1)

Exploits & Public PoCs for CVE-2016-20034 (1)

Security Blog Posts for CVE-2016-20034 (1)

Same Patch Batch · Wowza Media Systems, LLC. · 2026-03-15 · 4 CVEs total

CVE-2016-20033 7.8 HIGH Wowza Streaming Engine 4.5.0 Local Privilege Escalation via nssm_x64.exe
CVE-2016-20036 6.1 MEDIUM Wowza Streaming Engine 4.5.0 Multiple Cross-Site Scripting Vulnerabilities
CVE-2016-20035 5.3 MEDIUM Wowza Streaming Engine 4.5.0 CSRF via user edit endpoint

IV. Related Vulnerabilities

Same product: Wowza Streaming Engine
Same vendor: Wowza Media Systems, LLC.
Same weakness: CWE-352

V. Comments for CVE-2016-20034

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