CVE-2026-33716 AVideo Allows Unauthenticated Live Stream Control via Token Verification URL Override in control.json.php

Critical 9.4 Published Updated

Attackers can bypass authentication in AVideo by overriding token verification URLs, gaining unauthenticated control over live streams.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-33716?

CVE-2026-33716 is a critical authentication bypass vulnerability in Wwbn Avideo, published on 23 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-287

Which versions are affected by CVE-2026-33716?

2 open source packages ship an affected version, including wwbn/avideo. It affects 1 product.

PackageAffectedFixed in
wwbn/avideo PackagistAll versions to 26.0None
wwbn/avideo PackagistAll versions to 26.0None

Products include Wwbn Avideo.

How do I fix CVE-2026-33716?

No fix has been published for CVE-2026-33716 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-33716 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33716 exists.

All Wwbn Avideo vulnerabilities

Sources

Also known as GHSA-9hv9-gvwm-95f2.

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