CVE-2026-33648 AVideo Vulnerable to OS Command Injection via Unsanitized `users_id` and `liveTransmitionHistory_id` in Restreamer Log File Path

High 8.8 Published Updated

Authenticated attackers can execute arbitrary commands on the server by injecting shell metacharacters into unsanitized log file path parameters.

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

What is CVE-2026-33648?

CVE-2026-33648 is a high-severity command injection vulnerability in Wwbn Avideo, published on 23 Mar 2026. Any signed-in user can exploit it over the network, 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 restreamer endpoint constructs a log file path by embedding user-controlled `users_id` and `liveTransmitionHistory_id` values from the JSON request body without any sanitization. This log file path is then concatenated directly into shell commands passed to `exec()`, allowing an authenticated user to achieve arbitrary command execution on the server via shell metacharacters such as `$()` or backticks. Commit 99b865413172045fef6a98b5e9bfc7b24da11678 contains a patch.

Weakness: CWE-78

Which versions are affected by CVE-2026-33648?

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-2026-33648?

No fix has been published for CVE-2026-33648 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-33648 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33648 exists.

All Wwbn Avideo vulnerabilities

Sources

Also known as GHSA-5m4q-5cvx-36mw.

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