WWBN AVideo CustomizeUser Plugin swapUser.json.php User::swapUser users_id cross-site request forgery

Summaryinfo

A vulnerability described as problematic has been identified in WWBN AVideo. This affects the function User::swapUser of the file plugin/CustomizeUser/swapUser.json.php of the component CustomizeUser Plugin. Executing a manipulation of the argument users_id can lead to cross-site request forgery. This vulnerability is registered as CVE-2026-86719. It is possible to launch the attack remotely. No exploit is available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability classified as problematic was found in WWBN AVideo (unknown version). This vulnerability affects the function User::swapUser of the file plugin/CustomizeUser/swapUser.json.php of the component CustomizeUser Plugin. The manipulation of the argument users_id with an unknown input leads to a cross-site request forgery vulnerability. The CWE definition for the vulnerability is CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. As an impact it is known to affect integrity. CVE summarizes:

WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 (master) contains a cross-site request forgery vulnerability in the CustomizeUser plugin endpoint plugin/CustomizeUser/swapUser.json.php. The endpoint takes users_id from $_REQUEST and invokes User::swapUser() without calling forbidIfNotPost() or forbidIfInvalidToken(), and the global autoCSRFGuard() check only runs for POST requests to *.json.php, so the action is reachable via GET. An attacker who causes an authenticated administrator's browser to issue a cross-origin GET (for example via an <img> tag or link) can replace that administrator's session with a non-admin user account, causing the administrator to lose administrative access until the swap is cancelled; swapping to another administrator account is rejected, so this is not privilege escalation. The JSON response also discloses the session_id. The CustomizeUser plugin is enabled by default, and no patch was available at the time of publication.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-86719 since 09/08/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

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

Applying the patch c3edcc274c389816d434acadac07ee78eaf330c1 is able to eliminate this problem.

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Productinfo

Vendor

• WWBN

Name

• AVideo

License

• open-source

Website

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

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