CVE-2026-90545 WWBN AVideo Missing Authorization via commentAddNew.json.php

Medium 5.3 Published Updated

Authenticated users can bypass access controls to post comments on restricted videos in WWBN AVideo.

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-2026-90545?

CVE-2026-90545 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 video access permissions in the commentAddNew.json.php endpoint, allowing authenticated users to post comments on password-protected and group-restricted videos. Attackers can submit POST requests with a valid session to add comments to videos they cannot watch, bypassing password and group access controls.

Weakness: CWE-862

Which versions are affected by CVE-2026-90545?

How do I fix CVE-2026-90545?

No fix has been published for CVE-2026-90545 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-2026-90545 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90545 exists.

Sources

Also known as GHSA-5m6r-x4rr-p7f2, GHSA-v3p2-4x76-7p8v.

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