CVE-2026-126542 WWBN AVideo 6.5 through 29.7.1 Authentication Bypass via Hybridauth Social Login
Unauthenticated attackers can log in as any AVideo user, including administrators, by setting a victim's social login display name.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- 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-2026-126542?
CVE-2026-126542 is a critical authentication bypass vulnerability in WWBN AVideo, published on 11 Nov 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
WWBN AVideo 6.5 through 29.7.1 contains an authentication bypass vulnerability that allows unauthenticated attackers to log in as any user via Hybridauth social login display names. Attackers can set their X, Facebook, Yahoo or LinkedIn display name to a victim's username and withhold email, causing login.json.php or oauth2.php to log them in as that account, including administrators, without a password.
Weakness: CWE-290
Which versions are affected by CVE-2026-126542?
An affected version is exposed as installed. No special setting or call is needed.
How do I fix CVE-2026-126542?
No fix has been published for CVE-2026-126542 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-126542 being exploited?
There is no known exploitation of CVE-2026-126542 in the wild and no public exploit code.
Sources
Also known as GHSA-9rvm-cfc4-q9g9, GHSA-r23m-jf94-h653.