CVE-2026-72748 AVideo Unauthenticated Arbitrary File Write via aVideoEncoderChunk.json.php
Unauthenticated attackers can write arbitrary files to the server, enabling disk exhaustion or remote code execution via file inclusion.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-72748?
CVE-2026-72748 is a medium-severity vulnerability in WWBN AVideo, published on 11 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
AVideo contains an unauthenticated arbitrary file write vulnerability in the aVideoEncoderChunk.json.php endpoint that allows remote attackers to write up to 4 GB of arbitrary content to the server filesystem via HTTP PUT requests without authentication. Attackers can exhaust disk space causing denial of service, poison the video encoding pipeline, or chain this with local file inclusion to achieve remote code execution.
Weakness: CWE-306
Which versions are affected by CVE-2026-72748?
How do I fix CVE-2026-72748?
No fix has been published for CVE-2026-72748 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-72748 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-72748 exists.
Sources
Also known as GHSA-q6c7-vm4c-28mj, GHSA-v7p7-jccx-h37c.