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TI-2016-09210 Aliases CVE-2016-20034GHSA-6rxf-g628-g4p6

Wowza Streaming Engine 4.5.0 Privilege Escalation via user edit

Priority HIGH 73CWE-352Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Tampering
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-352.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00217 12th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
WowzaWowza Streaming Engine4.5.0—No fix listedCNA
  • Wowza Streaming Engine VendorWowza Affected 4.5.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:wowza:streaming_engine:4.5.0:*:*:*:*:*:*:*4.5.0VulnerableWowza
  • cpe:2.3:a:wowza:streaming_engine:4.5.0:*:*:*:*:*:*:* Versions 4.5.0 Vulnerable ·Wowza

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-20034
  2. 2026-10-03 Alias added: GHSA-6rxf-g628-g4p6

References

Exploit 2

  • TI-2016-09209 Wowza Streaming Engine 4.5.0 Local Privilege Escalation via nssm_x64.exe CVSS 4.0HIGH 8.5
  • TI-2016-09211 Wowza Streaming Engine 4.5.0 CSRF via user edit endpoint CVSS 4.0MEDIUM 6.9
  • TI-2018-13723 The REST API in Wowza Streaming Engine 4.7.4.01 allows traversal of the directory… CVSS 3.1CRITICAL 9.1
  • TI-2016-09212 Wowza Streaming Engine 4.5.0 Multiple Cross-Site Scripting Vulnerabilities CVSS 4.0MEDIUM 5.1
  • TI-2018-05112 An issue was discovered in the MBeans Server in Wowza Streaming Engine before 4.7.1. CVSS 3.0CRITICAL 9.8
  • TI-2020-07224 A remote authenticated authorization-bypass vulnerability in Wowza Streaming Engine 4.8.0… CVSS 3.1HIGH 8.8
See all 25 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences