CVE-2026-86729 WWBN AVideo Unrestricted Authentication Attempts via get_api_preauthorize
Unauthenticated attackers can bypass rate limits and exploit an information leak in the preauthorize API to brute-force credentials and take over accounts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86729?
CVE-2026-86729 is a critical authentication bypass vulnerability in WWBN AVideo, published on 8 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
WWBN AVideo through commit e01e41ecc (no patched version available) exposes get_api_preauthorize in plugin/API/API.php as a second, undocumented login path. Unlike get_api_signIn, which enforces a rate limit of 10 attempts per 5 minutes via checkRateLimit(), get_api_preauthorize performs the same credential check with no throttling for any client, allowing unlimited remote password guessing against arbitrary accounts, including admin. The endpoint also acts as a credential oracle: it returns the message "Invalid credentials" for both correct and incorrect passwords, while the users_id field in the response body discloses the authenticated identity (users_id:1 on success, users_id:0 on failure), and a correct password establishes a session cookie that remains usable for authenticated API requests. Together these issues permit unauthenticated brute-force account takeover.
Weakness: CWE-307
Which versions are affected by CVE-2026-86729?
How do I fix CVE-2026-86729?
No fix has been published for CVE-2026-86729 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-2026-86729 being exploited?
There is no known exploitation of CVE-2026-86729 in the wild and no public exploit code.
Sources
Also known as GHSA-22c4-jfr4-3q58, GHSA-vvqm-mgc5-hhx3.