CVE-2026-86721
AVideo through c3edcc274c Authorization Bypass via Session Cookie
- State
- Published
- Severity
- 8.7 High
- Published
- Sep 8, 2026
- Updated
- Sep 19, 2026
- Reserved
- Sep 8, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | VulnCheck |
Weaknesses
- CWE-287 Improper Authentication
Affected Products
| Product | Versions |
|---|---|
AVideoWWBN |
|
References
- GitHub Security Advisory (GHSA-5664-h9h4-3gwc)vendor-advisory
- VulnCheck Advisory: AVideo through c3edcc274c Authorization Bypass via Session Cookiethird-party-advisory
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