WWBN AVideo up to 26.0 Endpoint aVideoEncoder.json.php isValidURLOrPath chunkFile file inclusion

Summaryinfo

A vulnerability was found in WWBN AVideo up to 26.0. It has been rated as critical. Affected is the function isValidURLOrPath of the file /objects/aVideoEncoder.json.php of the component Endpoint. Performing a manipulation of the argument chunkFile results in file inclusion. This vulnerability is reported as CVE-2026-33354. The attack is possible to be carried out remotely. No exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in WWBN AVideo up to 26.0. It has been classified as critical. This affects the function isValidURLOrPath of the file /objects/aVideoEncoder.json.php of the component Endpoint. The manipulation of the argument chunkFile with an unknown input leads to a file inclusion vulnerability. CWE is classifying the issue as CWE-73. The product allows user input to control or influence paths or file names that are used in filesystem operations. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

WWBN AVideo is an open source video platform. In versions up to and including 26.0, `POST /objects/aVideoEncoder.json.php` accepts a requester-controlled `chunkFile` parameter intended for staged upload chunks. Instead of restricting that path to trusted server-generated chunk locations, the endpoint accepts arbitrary local filesystem paths that pass `isValidURLOrPath()`. That helper allows files under broad server directories including `/var/www/`, the application root, cache, tmp, and `videos`, only rejecting `.php` files. For an authenticated uploader editing their own video, this becomes an arbitrary local file read. The endpoint copies the attacker-chosen local file into the attacker's public video storage path, after which it can be downloaded over HTTP. Commit 59bbd601a3f65a5b18c1d9e4eb11471c0a59214f contains a patch for the issue.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-33354 since 03/18/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details of the vulnerability are known, but there is no available exploit.

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

Applying the patch 59bbd601a3f65a5b18c1d9e4eb11471c0a59214f is able to eliminate this problem.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• WWBN

Name

• AVideo

Version

• 26.0

License

• open-source

Website

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

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