Authorization Flaw in AVideo Allows User Link Modification
CVE-2026-89252

7.1HIGH

Key Information:

Vendor

Wwbn

Status
Avideo
Vendor
CVE Published:
11 September 2026

What is CVE-2026-89252?

AVideo's addLiveLink.php file is prone to an authorization oversight that permits authenticated users to modify another user's LiveLink metadata and HLS source. By exploiting this vulnerability, a user with 'canStream' permissions can supply an existing linkId, resulting in a redirection of viewers to media controlled by the attacker. This flaw highlights the importance of proper ownership verification mechanisms to safeguard user-generated content.

Affected Version(s)

AVideo 0

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-m...
vendor-advisory
https://www.vulncheck.com/advisories/avideo-missing-autho...
third-party-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

santhreal
.