What is CVE-2016-20034?

CVE-2016-20034 is a high-severity vulnerability in Wowza Media Systems, Llc. Streaming Engine, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2026-03-15.

How severe is CVE-2016-20034?

High severity. CVSS v3 base score is 8.8 out of 10.

CSRF in Wowza Media Systems, Llc. Streaming Engine

CVE-2016-20034

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…

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.000 (12.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Wowza Media Systems, Llc. Streaming Engine — versions 4.5.0

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

ExploitDB-40133 (exploit)
Vulnerability Advisory (vendor-advisory)
VulnCheck Advisory: Wowza Streaming Engine 4.5.0 Privilege Escalation via user edit (third-party-advisory)

Frequently asked questions

What is CVE-2016-20034?: CVE-2016-20034 is a high-severity vulnerability in Wowza Media Systems, Llc. Streaming Engine, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2026-03-15.
How severe is CVE-2016-20034?: High severity. CVSS v3 base score is 8.8 out of 10.