Vulnerability · Published Sep 11, 2026 · Assigned by VulnCheck
CVE-2026-89252AVideo Missing Authorization in addLiveLink.php LiveLink Update
Medium 6.5
In plain English
A medium-severity authorization bypass via user-controlled key in AVideo from WWBN. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.3%top 75.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to verify ownership in addLiveLink.php when updating LiveLinks, allowing authenticated users to modify other users' links. A canStream user can overwrite another user's LiveLink HLS source and metadata by supplying an existing linkId, redirecting viewers to attacker-controlled media.
Affected products (as reported)
Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
References
- GitHub Security Advisory (GHSA-m2c6-f5ww-j26v) vendor-advisory
- VulnCheck Advisory: AVideo Missing Authorization in addLiveLink.php LiveLink Update third-party-advisory