CVE-2026-86721 PUBLISHED

AVideo through c3edcc274c Authorization Bypass via Session Cookie

Assigner: VulnCheck
Reserved: 08.09.2026 Published: 08.09.2026 Updated: 08.09.2026

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.

CVSS Vector: 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
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS Score: 7.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	WWBN
Product	AVideo
Versions	Default: unaffected affected from 0 to c3edcc274c389816d434acadac07ee78eaf330c1 (incl.)

CVE-2026-86721 PUBLISHED

AVideo through c3edcc274c Authorization Bypass via Session Cookie

Metrics

Product Status

Credits

References

Problem Types