CVE-2016-20034CWE-352

Wowza Streaming Engine 4.5.0 Privilege Escalation via user edit

High · published March 15, 2026

CVSS v4.0
8.7
EPSS
0%
Percentile
11.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
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
EPSS
0.00212 · 11.0th percentile
Weakness
CWE-352 · Cross-Site Request Forgery (CSRF)
Published
2026-03-15T18:34Z
EPSS history
Timeline
  • 15 MAR 18:34Z
    Wowza Streaming Engine 4.5.0 Privilege Escalation via user edit
    cvelistv5