CVE-2026-126541 WWBN AVideo through 29.7.1 Missing Authorization via Live Restream Endpoints
Authenticated streamers can steal other users' stream keys and publish or restream their private lives on AVideo.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Harmful if only installed
- No
- Needs a specific call
- No
- Fix
- None listed
What is CVE-2026-126541?
CVE-2026-126541 is a high-severity missing authorization vulnerability in WWBN AVideo, published on 11 Nov 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
WWBN AVideo through 29.7.1 contains a missing authorization vulnerability in Live plugin restream endpoints that allows authenticated streamers to obtain other users' stream keys by supplying arbitrary live_transmitions_history_id values. Attackers can redeem the issued action tokens at verifyTokenForAction.json.php to retrieve victims' HLS URLs and stream keys, then publish as the victim or restream private or pay-per-view lives.
Weakness: CWE-639
Which versions are affected by CVE-2026-126541?
An affected version is exposed as installed. No special setting or call is needed.
How do I fix CVE-2026-126541?
No fix has been published for CVE-2026-126541 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-2026-126541 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-126541 exists.
Sources
Also known as GHSA-233c-vfmw-6rw9, GHSA-5m6p-rj9g-rr93.