Vulnerability · Published Sep 8, 2026 · Assigned by VulnCheck
CVE-2026-86721AVideo through c3edcc274c Authorization Bypass via Session Cookie
High 7.5
In plain English
A high-severity improper authentication in AVideo from WWBN. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 57.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
AVideo through commit c3edcc274c contains an authorization bypass vulnerability where a session cookie named 'key' with value 'value' overrides the $_REQUEST['key'] parameter in saveLive.php and related endpoints. Attackers can publish to any user's RTMP stream without authentication by using the known constant stream key value to hijack live broadcasts.
Affected products (as reported)
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
References
- GitHub Security Advisory (GHSA-5664-h9h4-3gwc) vendor-advisory
- VulnCheck Advisory: AVideo through c3edcc274c Authorization Bypass via Session Cookie third-party-advisory