WWBN AVideo 29.0 Video Encoder aVideoEncoderChunk.json.php unrestricted upload

Summaryinfo

A vulnerability labeled as critical has been found in WWBN AVideo 29.0. Affected is an unknown function of the file aVideoEncoderChunk.json.php of the component Video Encoder. Executing a manipulation can lead to unrestricted upload. This vulnerability is registered as CVE-2026-72748. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in WWBN AVideo 29.0. This vulnerability affects an unknown part of the file aVideoEncoderChunk.json.php of the component Video Encoder. The manipulation with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability was named CVE-2026-72748 since 08/10/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/11/2026). This vulnerability is assigned to T1608.002 by the MITRE ATT&CK project.

By approaching the search of inurl:aVideoEncoderChunk.json.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• WWBN

Name

• AVideo

Version

• 29.0

License

• open-source

Website

• Product: https://github.com/WWBN/AVideo/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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