WWBN AVideo up to 26.0 aVideoEncoderReceiveImage.json.php path traversal

Summaryinfo

A vulnerability was found in WWBN AVideo up to 26.0. It has been classified as critical. The affected element is an unknown function of the file objects/aVideoEncoderReceiveImage.json.php. The manipulation leads to path traversal. This vulnerability is referenced as CVE-2026-39369. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in WWBN AVideo up to 26.0 and classified as critical. This issue affects an unknown code block of the file objects/aVideoEncoderReceiveImage.json.php. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

WWBN AVideo is an open source video platform. In versions 26.0 and prior, objects/aVideoEncoderReceiveImage.json.php allowed an authenticated uploader to fetch attacker-controlled same-origin /videos/... URLs, bypass traversal scrubbing, and expose server-local files through the GIF poster storage path. The vulnerable GIF branch could be abused to read local files such as /etc/passwd or application source files and republish those bytes through a normal public GIF media URL.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-39369 since 04/06/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/07/2026). The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

By approaching the search of inurl:objects/aVideoEncoderReceiveImage.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.

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Productinfo

Vendor

• WWBN

Name

• AVideo

Version

• 26.0

License

• open-source

Website

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

CPE 2.3info

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CPE 2.2info

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