CVE-2026-86721

AVideo through c3edcc274c Authorization Bypass via Session Cookie

HIGH
7.5
CVSS Score
Published: September 8, 2026 at 03:13 PM UTC
Updated: September 19, 2026 at 03:17 PM UTC
1 product affected across 1 vendorAVideo

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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ c3edcc274c389816d434acadac07ee78eaf330c1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-287

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