WWBN AVideo up to 26.0 Category Listing API categories.json.php user_id authorization

Summaryinfo

A vulnerability, which was classified as problematic, has been found in WWBN AVideo up to 26.0. This affects an unknown function of the file categories.json.php of the component Category Listing API. This manipulation of the argument user_id causes authorization. This vulnerability is tracked as CVE-2026-34364. The attack is possible to be carried out remotely. No exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in WWBN AVideo up to 26.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file categories.json.php of the component Category Listing API. The manipulation of the argument user_id with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. As an impact it is known to affect confidentiality. The summary by CVE is:

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `categories.json.php` endpoint, which serves the category listing API, fails to enforce user group-based access controls on categories. In the default request path (no `?user=` parameter), user group filtering is entirely skipped, exposing all non-private categories including those restricted to specific user groups. When the `?user=` parameter is supplied, a type confusion bug causes the filter to use the admin user's (user_id=1) group memberships instead of the current user's, rendering the filter ineffective. Commit 6e8a673eed07be5628d0b60fbfabd171f3ce74c9 contains a fix.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-34364 since 03/27/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

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

Applying the patch 6e8a673eed07be5628d0b60fbfabd171f3ce74c9 is able to eliminate this problem. The bugfix is ready for download at github.com.

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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