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CVE-2026-33716

CRITICAL CVSS 3.1: 9.4 EPSS 0.08%
Updated Mar 25, 2026
PHP
Parameter Value
CVSS 9.4 (CRITICAL)
Affected Versions before 26.0
Type CWE-287 (Improper Authentication)
Vendor PHP
Public PoC No

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the standalone live stream control endpoint at `plugin/Live/standAloneFiles/control.json.php` accepts a user-supplied `streamerURL` parameter that overrides where the server sends token verification requests. An attacker can redirect token verification to a server they control that always returns `{"error": false}`, completely bypassing authentication.

This grants unauthenticated control over any live stream on the platform, including dropping active publishers, starting/stopping recordings, and probing stream existence. Commit 388fcd57dbd16f6cb3ebcdf1d08cf2b929941128 contains a patch.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Wwbn Avideo
cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:*
<= 26.0