WWBN AVideo up to 26.0 aVideoEncoder.json.php downloadURL server-side request forgery

Summaryinfo

A vulnerability has been found in WWBN AVideo up to 26.0 and classified as critical. This issue affects some unknown processing of the file objects/aVideoEncoder.json.php. Performing a manipulation of the argument downloadURL results in server-side request forgery. This vulnerability was named CVE-2026-39370. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, was found in WWBN AVideo up to 26.0. This affects an unknown part of the file objects/aVideoEncoder.json.php. The manipulation of the argument downloadURL with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. 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 26.0 and prior, objects/aVideoEncoder.json.php still allows attacker-controlled downloadURL values with common media or archive extensions such as .mp4, .mp3, .zip, .jpg, .png, .gif, and .webm to bypass SSRF validation. The server then fetches the response and stores it as media content. This allows an authenticated uploader to turn the upload-by-URL flow into a reliable SSRF response-exfiltration primitive. The vulnerability is caused by an incomplete fix for CVE-2026-27732.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-39370 since 04/06/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/07/2026).

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• WWBN

Name

• AVideo

Version

• 26.0

License

• open-source

Website

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

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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