CVE-2026-90540 WWBN AVideo Missing Authorization via playListAddVideo.json.php

Medium 5.3 Published Updated

Authenticated attackers can add password-protected videos to their playlists by bypassing watch permission checks in the AVideo platform.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-90540?

CVE-2026-90540 is a medium-severity missing authorization vulnerability in WWBN AVideo, published on 12 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to validate watch permissions in the playListAddVideo.json.php endpoint when adding videos to playlists. Authenticated attackers can add password-protected videos they cannot watch to playlists they own by submitting the video ID and playlist ID parameters.

Weakness: CWE-862

Which versions are affected by CVE-2026-90540?

How do I fix CVE-2026-90540?

No fix has been published for CVE-2026-90540 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-90540 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90540 exists.

Sources

Also known as GHSA-6vjh-7wpq-7jv4, GHSA-xhg9-rc5h-rp65.

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